Title of Invention

VIBRATION -TYPE MEASUREMENT PICKUP

Abstract

The measurement pickup includes: A pickup housing (10), which has a multiplicity of natural oscillation modes; as well as at least a first pickup tube (4) held oscillatably in the pickup housing (10), vibrating, at least at times and serving for conveying at least a volume fraction of the medium to be measured; an electromechanical, especially electrodynamic, exciter mechanism (60) acting on the at least one pickup tube for producing and/or maintaining mechanical oscillations of the at least one pickup tube (4); and a sensor arrangement reacting to movements, especially bending oscillations, of the pickup tube (4), for producing at least one oscillation measurement signal (svb) representing oscillations of the pickup tube (4). For suppressing or erasing at least one natural oscillation mode of the pickup housing (10), the measurement pickup has, additionally, at least a first support element (13a) affixed, especially directly, to the pickup housing (10) and serving to form essentially locationally-fixed oscillation nodes in the pickup housing (10). Thus, an outer oscillation system of the measurement pickup is formed by the pickup housing and at least the at least one support element, and an inner oscillation system of the measurement pickup by the at least one pickup tube (4), the medium conveyed at least instantaneously therein, and, at least in part, by the exciter mechanism (60) and the sensor arrangement (70). The inner oscillation system executes, during operation of the measurement pickup, mechanical oscillations with at least one wanted oscillation frequency (Fn), which depends on the size, shape and material of the pickup tube (4) and also on an instantaneous density of the medium, and which varies, during operation of the measurement pickup, within a predetermined wanted frequency band (AFn) having a lower and an upper limit frequency. By use of the support element, it is possible to manufacture vibration-type measurement pickups with large nominal diameters of more than 150 mm and high accuracy of measurement, even while largely maintaining already established and proven forms of construction.

Full Text

FORM 2 THE PATENT ACT 1970 (39 Of 1970) The Patents Rules, 2003 COMPLETE SPECIFICATION (See Section 10, and rule 13] 1. TITLE OF INVENTION VIBRATION-TYPE MEASUREMENT PICKUP APPLICANT(S) a) Name b) Nationality c) Address ENDRESS+HAUSER FLOWTEC AG SWISS Company KAGENSTRASSE 7, CH-4153 REINACH, SWITZERLAND 3. PREAMBLE TO THE DESCRIPTION The following specification particularly describes the invention and the manner in which it is to be performed : - The invention relates to a vibration-type measurement pickup for measuring a flowable medium, especially a gas, liquid, powder or other flowable substance, conveyed in a pipeline. In the technology of process measurements and automation, physical parameters, such as e.g. mass flow rate, density and/or viscosity, of a medium flowing in a pipeline are often measured using inline measuring devices, which include a vibratory measurement pickup, through which the medium flows, and a measurement and operating circuit connected thereto, for effecting reaction forces in the medium, such as e.g. Coriolis forces corresponding to the mass flow rate, inertial forces corresponding to the density of the medium and/or factional forces corresponding to the viscosity of the medium, etc., and for producing, derived from these forces, measurement signals respectively representing mass flow rate, density and viscosity. Such measurement pickups, especially those in the form of Coriolis mass flow meters or Coriolis mass flow/density meters, are described, in detail e.g. in WO-A 04/038341, WO-A 03/076879, WO-A 03/027616, WO-A 03/021202, WO-A 01/33174, WO-A 00/57141, WO-A 98/07009, US Patent Nos. 6,711,958, 6,666,098, 6,308,580, 6,092,429, 5,796,011, 5,301,557, 4,876,898, EP-A 553 939, EP-A1 001 254, EP-A1 448 956, or EP-A1 421 349. For conveying the medium, flowing at least at times, the measurement pickups include at least one pickup tube, which is secured appropriately oscillatably to a usually thicker-walled, especially tubular and/or beam-like, carrier cylinder or in a carrier frame. For producing the above-mentioned reaction forces, the pickup tube is caused to vibrate during operation, driven by a, usually, electrodynamic exciter mechanism. For detecting vibrations of the pickup tube, especially inlet, and outlet, end vibrations, and for producing at least one oscillation measurement signal representing such, these measurement pickups additionally include a sensor arrangement reacting to movements, and thus also to mechanical oscillations, of the pickup tube. During operation, the above-described, inner oscillation system of the measurement pickup, formed by the at least one pickup tube, by the medium conveyed at least instantaneously therein, and, at least in part, by the exciter mechanism and sensor arrangement, is excited by means of the electromechanical exciter mechanism, at least at times, to execute mechanical oscillations in a wanted oscillation mode at at least one, dominating, wanted oscillation frequency. These oscillations in the so-called wanted oscillation mode are, mostly, especially in the case of application of the measurement pickup as a Coriolis mass flow and/or density meter, at least partially developed as lateral oscillations. In such case, the wanted oscillation frequency is selected to be a natural, instantaneous resonance frequency of the internal oscillation system, which, in turn, depends on size, form and material of the pickup tube, as well as also on the instantaneous density of the medium; where appropriate, the wanted oscillation frequency can also be significantly influenced by an instantaneous viscosity of the medium. Due to fluctuating density of the medium to be measured and/or due to medium changes effected during operation, the wanted oscillation frequency is naturally changeable during operation of the measurement pickup, at least within a calibrated, and, to that extent, predetermined, wanted frequency band, which has, correspondingly, predetermined lower and upper frequency limits. The inner oscillation system of the measurement pickup formed together by the at least one pickup tube, the exciter mechanism and the sensor arrangement is, furthermore, usually accommodated in a pickup housing having, as an integral component, a carrier frame, or carrier cylinder, as the case may be. This housing can likewise have a large number of natural oscillation modes. Suitable pickup housings for vibration-type measurement pickups are described, for example, in WO-A 03/076879, WO-A 03/021202, WO-A 01/65213, WO-A 00/57141, US-B 6,776,052, US-B 6,711,958, US-A 6,044,715, US-A 5,301,557 or EP-A 1 001 254. The housing caps of such pickup housings are usually manufactured in one piece by means of deep-drawn intermediates. Additionally, however, these housing caps can, especially in the - 2 - case of larger dimensions, be composed of separate, shell-shaped, intermediate pieces, as is proposed e.g. also in WO-A 03/021202. The pickup housing described in WO-A 03/021202 is formed by means of a support tube and a housing; cap welded therewith, with the housing cap itself including, due to the special manufacturing, an upper, essentially trough-shaped, first housing segment with a first segment edge and a second segment edge formed essentially identically to the first segment edge, an essentially planar, second housing segment, which is connected via its first segment edge with the first segment edge of the first housing segment, and a third housing segment essentially mirror-symmetric to the second housing segment and connected via its first segment edge with the second segment edge of the first housing segment. Pickup housings of the described kind serve, besides for holding the at least one pickup tube, additionally also for protecting the pickup tube, the exciter mechanism and the sensor arrangement, as well as other internally situated components, from external, environmental influences, such as e.g. dust or water spray. The user also frequently requires that such pickup housings, and especially their housing cap, be able to withstand, leak-free, at least for a predetermined time, the internal pressure, mostly lying markedly above the external pressure, arising in the case of a bursting of the tube segment of the pickup tube. At least for applications involving toxic or easily ignitable media, the pickup housing must, in cases, also be able to fulfill the requirements applicable for a safety container. Additionally, also a sufficient damping of sound emissions possibly produced by the measurement pickup is required. Development in the field of vibration-type measurement pickups has, in the meantime, reached such a level, that modern measurement pickups of the described kind can be used practically for almost all applications of flow measurement technology and can satisfy the highest requirements of this field. Thus, such measurement pickups are used in practice for mass flow rates of only a few g/h (grams per hour) up to several t/h (tonnes per hour), at pressures of up to 100 bar for liquids or even over 300 bar for gases. The achieved accuracy of measurement in such cases lies usually at about 99.9% of the actual value, or higher, or a measurement error of about 0.1%, with a lower limit of the guaranteed measurement range lying quite easily at about 1% of the measurement range end value. Due to the high bandwidth of their possibilities for use, measurement pickups of the described kind are offered, depending on application, additionally with nominal diameters lying, measured at the flange, between 1 mm and 250 mm or even above. As the nominal diameters of vibration-type pickups become always larger, their installed mass practically inherently also becomes larger. Such measurement pickups, including flanges possibly attached thereto, have, in the meantime, grown, at least in individual cases or small-series production, to installed masses of far above 500 kg. However, it must be appreciated that, alone in consideration of the structural situations in the plants, it is necessary that there be limitations to further marked increases in the installed mass of such measurement pickups. Considering also that the installed mass increases more than proportionally to the nominal diameter of the measurement pickup, in order to achieve the high mechanical stability likewise required for measurement pickups of the described kind, it seems that the above-mentioned sizes already represent an upper limit for what is currently economically realizable for vibration-type measurement pickups. In the case of the above-described, conventional forms of construction, a corresponding installed mass to nominal diameter ratio of the total installed mass of the measurement pickup to its nominal diameter, for nominal diameters of less than 150 mm, is usually smaller than 1 kg/ mm, while, for nominal diameters of over 150 mm, especially greater than 200 mm, the ratio would lie noticeably above 1.5 kg/mm. Considering that, in the case of measurement pickups of the described form of construction with nominal diameters of greater than 150 mm and with use of the currently usual materials, very high installed mass to nominal diameter ratios are to be expected, it appears that, for - 3 - vibration-type measurement pickups, an increase of their nominal diameters is scarcely possible any more, without accompanying significant increase of the installed masses. As a result of the specified limitations respecting maximum installed masses, a special problem exists for the design of measurement pickups of large nominal diameter, that, due to the then compelled very high total mass of the above-mentioned inner oscillation system (mass of the pickup tube itself, mass of the volume fraction of the medium to be measured instantaneously conveyed in the pickup tube, total mass of the exciter mechanism and sensor arrangement, etc.), an outer oscillation system of the measurement pickup, formed at least by the pickup housing, including carrier cylinder, or carrier frame, as the case may be, and possibly provided distributer pieces and/or flanges, must, in comparison to the inner oscillation system, become ever lighter. In other words, such measurement pickups with large nominal diameters must, because of their most often large installed mass, be so designed, that, in comparison with conventional measurement pickups with smaller nominal diameters, a mass ratio of a total mass of the outer oscillation system to a total mass of the inner oscillation system is small. Investigations have now, however, shown, that, in the case of comparatively small mass ratios (total mass of the outer oscillation system: total mass of the inner oscillation system) of smaller than 4 :1, such as can arise due to the above-mentioned limiting to a still-manageable installed mass of the measurement pickup, especially in the case of measurement pickups of large nominal diameter, especially in the case conventionally constructed measurement pickups of a nominal diameter of greater than 200 mm, eigenfrequencies of the outer oscillation system unluckily become shifted quite near to the wanted oscillation frequency or even into the wanted frequency band. As a result of this, the undesired situation can, for example, arise, that the inner oscillation, operating, as it should, at the wanted oscillation frequency, excites the outer oscillation system to resonance oscillations, which then get superimposed on the oscillations of the inner oscillation system and, thus, can significantly influence, or even render completely useless, the oscillation measurement signal delivered by the sensor arrangement. The interfering vibrations are, in such case, caused to a considerable degree by the components of the outer oscillation system, especially the mentioned housing segments, which are made with a wall thickness mostly smaller than 5 mm, thus almost thin-walled, yet being at the same time quite large as regards surface area. For example, the frequency spectrum shown by way of example in Fig. 2 was experimentally determined for an outer oscillation system of form of construction described in WO-A 03/021202 and schematically illustrated in Figs, la, b, including a support tube and a housing cap affixed thereto. Clearly recognizable is that the outer oscillation system exhibits pronounced oscillation modes at about 255 Hz and about 259 Hz, with the above-mentioned, wanted frequency band for the inner oscillation system of the same measurement pickup having been determined to lie in the range of about 210 Hz to 270 Hz. According to this, in the case of the described measurement pickup configuration, the outer oscillation system would resonate over practically the entire wanted frequency band that should actually be kept free of disturbances. Consequently, the oscillation measurement signals determined in such case, especially signals for a mass flow rate measurement or for a density measurement, would be essentially completely unusable. A possibility for reducing such disturbance oscillations coming from the outer oscillation system is, for instance, as proposed e.g. in WO-A 01/33174, to affix extra masses to the pickup housing, such as resonate essentially with the pickup housing and, therefore, bring about a studied detuning of the outer oscillation system relative to the inner oscillation system. A disadvantage of such a solution is, with reference to the use on measurement pickups of large nominal diameter, that this, in turn, results in a further increasing of the already very large installed mass of the measurement pickup. Proceeding from the above-discussed state of the art, an object of the invention is, therefore, to - 4 - provide a vibration-type measurement pickup, which, especially while largely retaining already established and proven forms of construction, exhibits, even at large nominal diameter, a highest possible measurement accuracy of 99.8% or above and, in such context, a measurement error of less than 0.02%. For achieving the object, the invention resides in a vibration-type measurement pickup for measuring a flowable medium conveyed in a pipeline, especially a gas, liquid, powder or some other flowable substance, which measurement pickup includes: -A pickup housing, which exhibits a multiplicity of natural oscillation modes; -at least a first pickup tube for conveying at least a volume fraction of the medium to be measured, said tube being held oscillatably in the pickup housing and vibrating, at least at times; -an electromechanical, especially electrodynamic, exciter mechanism acting on the at least one pickup tube for producing and/or maintaining mechanical oscillations of the at least one pickup tube; -a sensor arrangement reacting to movements, especially bending oscillations, of the pickup tube, for producing at least one oscillation measurement signal representing oscillations of the pickup tube; as well as -at least a first support element fixed, especially directly, to the pickup housing and serving for the formation of essentially elocationally fixed oscillation nodes in the pickup housing for suppressing or erasing at least one natural oscillation mode of the pickup housing; -wherein an outer oscillation system of the measurement pickup is formed by the pickup housing and at least the at least one support element and an inner oscillation system of the measurement pickup is formed by the at least one pickup tube, the medium at least instantaneously conveyed therein, and, at least in part, by the exciter mechanism and the sensor arrangement; and -wherein the inner oscillation system, driven by the exciter mechanism, executes, at least at times during operation of the measurement pickup, mechanical oscillations, especially in the form of lateral oscillations, having at least one wanted oscillation frequency, —which is both dependent on size, form and material of the pickup tube as well as also on an instantaneous density of the medium, and -which, during operation of the measurement pickup, is variable within a predetermined, wanted, frequency band having lower and upper limit frequencies. In a first embodiment of the measurement pickup of the invention, the pickup housing and the at least one support element are so formed and so connected mechanically together, that the outer oscillation system of the measurement pickup at least formed thereby, in spite of the oscillations of the pickup tube, executes, at least within the wanted frequency band, no, or possibly only such undesired, disturbance oscillations, of which an instantaneously dissipated, disturbance, oscillation power is substantially smaller than a wanted oscillation power instantaneously dissipated at the wanted oscillation frequency by the oscillations of the inner oscillation system. In a second embodiment of the measurement pickup of the invention, a wanted-to-disturbance power ratio of the wanted oscillation power to the disturbance oscillation power is at least larger than 2, especially larger than 5. Especially, the disturbance oscillation power corresponds, in such case, to an average value of all oscillation powers instantaneously dissipated within the wanted frequency band by disturbance oscillations. In a third embodiment of the measurement pickup of the invention, the pickup housing and the at least one support element are so formed and so mechanically connected together, that the outer oscillation system of the measurement pickup formed at least thereby, despite the oscillations of the pickup tube, executes, at least within the wanted frequency band, no or possibly only such undesired disturbance oscillations, of which an instantaneously maximum - 5 - disturbance oscillation amplitude is significantly smaller than an instantaneously maximum oscillation amplitude of the oscillations of the inner oscillation system, especially the pickup tube itself. In a fourth embodiment of the measurement pickup of the invention, a wanted-to-disturbance amplitude ratio of the instantaneously maximum oscillation amplitude of the oscillations of the inner oscillation system to the instantaneously maximum disturbance oscillation amplitude is greater than 1.5, especially greater than 2. In a fifth embodiment of the measurement pickup of the invention, the pickup housing and the at least one support element are so formed and so connected mechanically together that the measurement pickup outer oscillation system at least formed thereby, in spite of the oscillations of the pickup tube, executes, at least within the wanted frequency band, no or possibly only such undesired disturbance oscillations, of which an instantaneous disturbance oscillation quality factor is significantly smaller than an instantaneous wanted oscillation quality factor of the oscillations of the inner oscillation system at the wanted oscillation frequency. In a sixth embodiment of the measurement pickup of the invention, a wanted-to-disturbance oscillation quality-factor ratio of the instantaneous wanted oscillation quality factor to the instantaneous disturbance oscillation quality factor is at least 50:1, especially greater than 80. In a seventh embodiment of the measurement pickup of the invention, the sensor arrangement includes a first oscillation sensor, especially one arranged on the inlet end of the at least one pickup tube, as well as a second oscillation sensor, especially one arranged on the outlet end of the at least one pickup tube. In an eighth embodiment of the measurement pickup of the invention, the exciter mechanism includes at least one oscillation exciter, especially one arranged at the half-way point on the at least one pickup tube. In a ninth embodiment of the measurement pickup of the invention, the pickup housing includes an, especially steel, carrier element, with which the at least one pickup tube is mechanically connected at its inlet and outlet ends. In a further development of this embodiment of the measurement pickup of the invention, the carrier element of the pickup housing is embodied as an, especially essentially tubular, carrier cylinder, with which the at least one pickup tube is mechanically connected at its inlet and outlet ends. In a further development of this embodiment of the measurement pickup of the invention, the carrier element has a mass of at least 70 kg, especially of more than 140 kg, and/or a length of at least 1000 mm, especially of more than 1200 mm. In a tenth embodiment of the measurement pickup of the invention, the at least one pickup tube has at least one bent tube segment. In a further development of this embodiment of the measurement pickup of the invention, the at least one pickup tube has at least one, essentially U- or V-shaped, tube segment. In another further development of this embodiment of the measurement pickup of the invention, the pickup housing has a housing segment arranged laterally next to the at least one bent tube segment of the at least one pickup tube, especially extending at least sectionally essentially parallel to the bent tube segment and/or essentially plate-shaped, with preferably at least two housing segments being arranged lying opposite to one another in such a manner that the at least one bent tube segment of the at least one pickup tube extends at least sectionally between the two housing segments. Preferably, in such case, the at least one support element is affixed at least in part to the housing segments. In an eleventh embodiment of the measurement pickup of the invention, the at least one - 6 - support element is formed by means of at least one solid plate, which is connected with the pickup housing at at least two mutually opposing attachment locations, especially by means of bolts and/or at least partially releasably. In a twelfth embodiment of the measurement pickup of the invention, the at least one support element has a mass of at least 3 kg. In a thirteenth embodiment of the measurement pickup of the invention, the at least one support element is at least pointwise welded and/or soldered, especially hard soldered or brazed, with the pickup housing. In a fourteenth embodiment of the measurement pickup of the invention, the at least one support element is at least pointwise screw-connected to the pickup housing. In a fifteenth embodiment of the measurement pickup of the invention, the at least one support element is at least pointwise affixed to the pickup housing in the region of an oscillation antinode, especially of a local oscillation amplitude, of a natural oscillation mode of the pickup housing. In a sixteenth embodiment of the measurement pickup of the invention, at least one oscillation-damping inlay is provided coupled to the pickup housing, especially extending at least sectionally between the at least one support element and the pickup housing. In a further development of this embodiment of the invention, the oscillation-damping inlay is made of a plastic, a rubber, a silicone or the like. In another further development of the invention, the inlay extends at least sectionally between the at least one support element and the pickup housing. In a seventeenth embodiment of the measurement pickup of the invention, this further includes a second support element likewise affixed, especially directly, to the pickup housing, especially a second support element essentially identical to the first support element, for forming essentially locationally fixed oscillation nodes in the pickup housing, with the outer oscillation system of the measurement pickup including, to this extent, at least also the second support element. In a further development of this embodiment of the measurement pickup of the invention, the sensor arrangement includes a first oscillation sensor, especially a first oscillation sensor arranged on the inlet end of the at least one pickup tube, as well as a second oscillation sensor, especially one arranged on the outlet end of the at least one pickup tube, and the first support element is affixed to the pickup housing at least partially in the vicinity of the first oscillation sensor and the second support element at least in part in the vicinity of the second oscillation sensor. In an eighteenth embodiment of the measurement pickup of the invention, it additionally has a third support element likewise affixed, especially directly, to the pickup housing for forming essentially locationally fixed, oscillation nodes in the pickup housing, with the outer oscillation system of the measurement pickup, to such extent, including at least also the third support element. In a further development of this embodiment of the measurement pickup of the invention, the exciter mechanism includes at least one oscillation exciter, especially an exciter arranged at the halfway point on the at least one pickup tube, and the third support element is at least in part affixed to the pickup housing in the vicinity of the oscillation exciter. In a nineteenth embodiment of the measurement pickup of the invention, it additionally has at the inlet end a first connection flange, as well as at the outlet end a second connection flange, for the connecting of the measurement pickup to the pipeline, with the outer oscillation system of the measurement pickup, to such extent, including also at least the first and second connection flanges. In a further development of this embodiment of the measurement pickup - 7 - of the invention, each of the two connection flanges has, in such case, a mass of more than 50 kg, especially more than 60 kg. In a twentieth embodiment of the measurement pickup of the invention, it includes further a second pickup tube essentially identical to the first pickup tube and/or extending essentially parallel to the first pickup tube. In a further development of this embodiment of the measurement pickup of the invention, it has, additionally, at least a first node plate connecting the first and second pickup tubes together at their inlet ends, as well as at least a second node plate connecting the first and the second pickup tubes together at their outlet ends, with the inner oscillation system of the measurement pickup including, to such extent, at least also the first and the second node plates. In another further development of the measurement pickup of the invention, it further includes a first distributor piece connecting the first and second pickup tubes together at their inlet ends, as well as a second distributor piece connecting the first and second pickup tubes together at their outlet ends, with the outer oscillation system of the measurement pickup, to such extend, including at least also the first and second distributor pieces. Especially, each of the two distributor pieces has, in such case, a mass of more than 10 kg, especially of more than 20 kg. In a twenty-first embodiment of the measurement pickup of the invention, the instantaneous wanted oscillation frequency corresponds essentially to an instantaneous, natural eigenfrequency of the inner oscillation system. In a twenty-second embodiment of the measurement pickup of the invention, the outer oscillation system of the measurement pickup has at least one oscillation mode with a lowest, natural eigenfrequency, which is smaller than the lower limit frequency of the wanted frequency band. In a twenty-third embodiment of the measurement pickup of the invention, the inner oscillation system has at least one oscillation mode with a natural eigenfrequency, which is, during operation, always greater than the lowest natural eigenfrequency of the outer oscillation system. In a twenty-fourth embodiment of the measurement pickup of the invention, the outer oscillation system has at least one oscillation mode with a natural eigenfrequency, which is smaller than the upper limit frequency of the wanted frequency band and which is larger than the lower limit frequency of the wanted frequency band. In a twenty-fifth embodiment of the measurement pickup of the invention, the upper limit frequency of the wanted frequency band is determined for the condition that the density of the medium is essentially zero, especially about equal to a density of air. In a twenty-sixth embodiment of the measurement pickup of the invention, the lower limit frequency of the wanted frequency band is determined for the condition that the density of the medium is greater than 400 kg/m3. In a twenty-seventh embodiment of the measurement pickup of the invention, the lower limit frequency of the wanted frequency band is determined for the condition that the density of the medium is less than 2000 kg/m3. In a twenty-eighth embodiment of the measurement pickup of the invention, the upper limit frequency of the wanted frequency band is determined for the condition that a viscosity of the medium is smaller than 100-lCr6 Pas, especially about equal to a viscosity of air. In a twenty-ninth embodiment of the measurement pickup of the invention, the lower limit - 8 - frequency of the wanted frequency band is determined for the condition that a viscosity of the medium is greater than 30010"6 Pas. In a thirtieth embodiment of the measurement: pickup of the invention, the lower limit frequency of the wanted frequency band is determined for the condition that a viscosity of the medium is less than 3000-10"6 Pas. In a thirty-first embodiment of the measurement pickup of the invention, the wanted frequency band has a band width of at least 20 Hz, especially more than 50 Hz. In a thirty-second embodiment of the measurement pickup of the invention, the at least one pickup tube and the pickup housing are comprised of steel, especially high grade and/or stainless steel. In a thirty-third embodiment of the measurement pickup of the invention, the at least one pickup tube has a mass of at least 10 kg, especially greater than 25 kg. In a thirty-fourth embodiment of the measurement pickup of the invention, the pickup tube has an inner diameter of at least 80 mm, especially greater than 100 mm. In a thirty-fifth embodiment of the measurement pickup of the invention, the pickup tube has a stretched length of at least 1000 mm, especially greater than 1500 mm. In a thirty-sixth embodiment of the measurement pickup of the invention, the pickup housing has a mass of at least 80 kg, especially more than 160 kg. In a thirty-seventh embodiment of the measurement pickup of the invention, the pickup housing has a minimum wall thickness of less than 6 mm. In a thirty-eighth embodiment of the measurement pickup of the invention, a total mass of the inner oscillation system amounts to at least 70 kg. In a further development of this embodiment of the measurement pickup of the invention, the total mass, during operation, is, at least at times, greater than 90 kg. In a thirty-ninth embodiment of the measurement pickup of the invention, a total mass of the outer oscillation system amounts to at least 200 kg. In a further development of this embodiment of the measurement pickup of the invention, the total mass is greater than 300 kg. In a fortieth embodiment of the measurement pickup of the invention, a mass ratio of a total mass of the outer oscillation system to a total mass of the inner oscillation system is, during operation, at least at times, smaller than 3, especially smaller than 2.5. In a further development of this embodiment of the measurement pickup of the invention, the mass ratio of the total mass of the outer oscillation system to the total mass of the inner oscillation system is continuously smaller than 3. In a forty-first embodiment of the measurement pickup of the invention, an installed mass to nominal diameter ratio of an installed mass of the total measurement pickup to a nominal diameter of the measurement pickup corresponding to a caliber of the pipeline, in whose course the measurement pickup is to be inserted, amounts to greater than 2 kg/mm. In a forty-second embodiment of the measurement pickup of the invention, the installed mass of the total measurement pickup is greater than 200 kg, especially greater than 400 kg. In a first variant of this embodiment of the invention, the at least one pickup tube has a bent - 9 - tube segment, and the carrier element is embodied as a laterally, at least partially open, especially tubular, carrier cylinder, which is so connected with the at least one pickup tube that the at least one bent tube segment protrudes laterally out of the carrier cylinder. Furthermore, the pickup housing includes a housing cap affixed, especially permanently and/or medium-tightly, to the carrier element and arranged spaced from the at least one pickup tube, for housing the at least one, bent tube segment of the pickup tube. In a first embodiment of the first variant of the measurement pickup of the invention, the housing cap has a mass of at least 10 kg, especially more than 20 kg. In a second embodiment of the first variant of the measurement pickup of the invention, the at least one support element is affixed partly to the housing cap and partly to the carrier cylinder. In a third embodiment of the first variant of the measurement pickup of the invention, the at least one support element is formed by means of at least one solid plate, which is affixed at least pointwise, especially at least partly releasably and/or at least pointwise bonded, both to the housing cap and to the carrier cylinder. In a fourth embodiment of the first variant of the measurement pickup of the invention, the housing cap includes housing segments, which arranged laterally beside the at least one bent tube segment of the at least one pickup tube, especially extending at least sectionally essentially parallel to the bent tube segment and/or being essentially plate-shaped, with there being preferably at least two housing segments arranged opposed to one another in such a manner that the at least one bent tube segment of the at least one pickup tube extends at least sectionally between the two housing segments. In a further development of this embodiment of the first variant, the housing cap includes a trough-shaped, first housing segment having a circular-arc-shaped, first segment edge of predeterminable radius and having a second segment edge formed essentially identically to the first segment edge, with the first housing segment having a circular-arc-shaped cross section with a radius, which is smaller than the radius of the first segment edge. Furthermore, the housing cap includes an essentially planar, second housing segment, which is connected via a circular-arc-shaped, first segment edge with the first segment edge of the first housing segment, as well as a third housing segment essentially mirror symmetrical to the second housing segment and connected via a circular-arc-shaped, first segment edge with the second segment edge of the first housing segment, with the second and third housing segments preferably lying each in a tangential plane of the first housing segment. In a second variant of the measurement pickup of the invention, the pickup housing includes: A carrier frame, which is so connected mechanically with the at least one pickup tube at its inlet and outlet ends, that the at least one bent tube segment extends within the carrier frame; a first housing segment, which is arranged laterally beside the at least one bent tube segment of the at least one pickup tube, especially extending at least sectionally essentially parallel to the bent tube segment and/or essentially plate-shaped and which is affixed to the carrier frame, especially permanently and/or medium-tightly; as well as a second hosing segment, which is arranged beside the at least one bent tube segment of the at least one pickup tube, especially at least sectionally extending essentially parallel to the bent tube segment and/or essentially plate-shaped, and which is affixed to trie carrier frame, especially permanently and/or medium tightly. Furthermore, the two housing segments are arranged in this second variant in such a manner lying opposite to one another, that the at least one bent tube segment of the at least one pickup tube extends at least sectionally between the two housing segments. A basic idea of the invention is use of the additional support elements to construct the outer oscillation system, thus those components of the measurement pickup whose mechanical oscillations in the operation of the measurement pickup are, if anything, undesired and, are, to - 10 - such extent, possibly disturbance oscillations, such that the outer oscillation system acts as a band-blocking filter, at least for those oscillation frequencies which would lie within the wanted frequency band, which, in turn, is a band predominantly dependent on the characteristics of the inner oscillation system. In other words, by the studied de-tuning of the outer oscillation system with respect to the inner oscillation system by means of the support elements, a blocked frequency band is created barring potential disturbance oscillations. Within the blocked frequency band, possible disturbance oscillations of the outer oscillation system are at least effectively suppressed. The invention rests, in such case, among other things, on the recognition that the potential disturbance oscillations in the range of the wanted frequency band are predominantly determined by the oscillation characteristics of the, if anything, thin-walled and very large-surfaced housing segments, and that an especially effective removal of disturbance of the measurement pickup can occur by suitable positioning of the support elements, even after placement of just a few of such additional, resulting fixation points in the pickup housing and thus with the addition of only a relatively slight, added mass. An advantage of the invention is that, already by the use of some few support elements serving, in principle, to increase a bending stiffness of the housing segments and, to such extent, without large added complexity in comparison to conventional measurement pickups, a wanted frequency band, or a blocked frequency band for potential interfering oscillations, can be realized, which, for the practical operation of measurement pickups with a critical installed mass to nominal diameter ratio of greater than 1.5 kg/mm, especially larger than 2 kg/ mm, and/or a' critical mass ratio of the total mass of the outer oscillation system to the total mass of the inner oscillation system of smaller than 4, especially smaller than 3, is largely kept free of disturbance oscillations over a sufficiently wide frequency range. To such extent, a further advantage of the invention is that an opportunity is created whereby vibration-type measurement pickups also with large nominal diameters of over 150 mm, especially with a nominal diameter of greater than 200 mm, can, on the one hand, be realized on an economically sensible basis, and, on the other hand, the installed masses are still manageable. A further advantage of the invention is that, in such case, also already established and proven forms of construction can largely be retained. The measurement pickup of the invention is, therefore, suited especially for the measurement of flowable media conveyed in a pipeline having a caliber of greater than 150 mm, especially of 250 mm or above. Additionally, the measurement pickup is also suited for the measurement of mass flow rates, which are, at least at times, greater than 900 t/h, especially, at least at times, greater than 1200 t/h, such as can arise e.g. in the case of applications involving the measurement of petroleum, natural gas or other petrochemical substances. The invention will now be explained in greater detail on the basis of examples of embodiments and the figures of the drawing. Functionally equal parts are provided in the separate figures with the same reference characters, which, however, are only repeated in subsequent figures when such appears useful. Figs, la, bshow, in different side views, a conventional, inline measuring device, for example one serving as a Coriolis flow/density/viscosity pickup, based on a vibration-type measurement pickup; Fig. 2shows an experimentally determined spectrum of mechanical eigenfrequencies of a vibration-type measurement pickup used for an inline measuring device according to Figs, la, b; Figs. 3a, bshow, in different side views, an inline measuring device serving as a flow/density/viscosity pickup based on an improved vibration-type - 11 - measurement pickup; Figs. 4 to 7show, in different, partially sectional, side views, details of a first variant of a vibration-type measurement pickup suited for an inline measuring device of Figs. 3a, b; Fig. 8shows an experimentally determined spectrum of mechanical eigenfrequencies of a measurement pickup according to Figs. 4-7; and Figs. 9 to llshow, in different, sectional, side views, details of a second variant of a vibration-type measurement pickup suited for an inline measuring device of Figs. 3a, b. Figs. 3a, b show an inline measuring device 1, especially one embodied as a Coriolis mass flow rate and/or density measuring device, which serves for registering a mass flow rate m of a medium flowing in a pipeline (not shown) and for reflecting such in a mass flow rate measured value Xm instantaneously representing this mass flow rate. The medium can be practically any flowable substance, especially a powder, liquid, gas, vapor or the like. Alternatively or in supplementation, the inline measuring device 1 can, as required, also be used to measure a density p and/or a viscosity r| of the medium. The measurement pickup is especially intended for measuring media, such as e.g. petroleum, natural gas or other petrochemical substances, which flow in a pipeline having a caliber of greater than 150 mm, especially a caliber of 250 mm or above, and/or which have, at least at times, a mass flow rate of greater than 900 t(metric)/h, especially of greater than 1200 t/h. The inline measuring device 1 includes therefor a vibration-type measurement pickup 10, through which the medium to be measured flows during operation, as well as a measuring device electronics 20 electrically connected with the measurement pickup 10. The measuring device electronics 20 is not shown here in detail, but, instead, is indicated only schematically as a block. Advantageously, the measuring device electronics 20 is so constructed that it can exchange measurement and/or other operating data with a measured-value processing unit superordinated to it, for example a programmable logic controller (PLC), a personal computer and/or a work station, via a data transfer system, for example a fieldbus system. Additionally, the measuring device electronics is so constructed that it can be fed from an external energy, or power, supply, for example also over the above-mentioned fieldbus system. For the case that the inline measuring device has provision for connecting to a fieldbus or another communication system, the, especially programmable, measuring device electronics has, additionally, an appropriate communication interface for communicating data, e.g. for transmitting the measurement data to the already mentioned programmable logic controller or to a superordinated, process control system. Figs. 4 to 7 show, in various views, an example of an embodiment of a first variant of the measurement pickup 1 serving especially as a Coriolis mass flow rate, density and/or viscosity pickup, while Figs. 9 to 11 illustrate an example of an embodiment for a second variant of such a measurement pickup. As already indicated, the measurement pickup serves for producing such mechanical reaction forces, especially Coriolis forces dependent on mass flow rate, inertial forces dependent on the density of the medium and/or frictional forces dependent on the viscosity of the medium. These forces react measurably, especially in a manner registerable by sensor, on the measurement pickup. Based on these reaction forces describing the medium, e.g. mass flow rate, density and/or viscosity of the medium can be measured, in manner know to those skilled in the art, by means of evaluation methods appropriately implemented in the measuring device electronics. Measurement pickup 1 is inserted, during operation, into the course of a pipeline (not shown) using flanges 2, 3. The medium to be measured, especially a powdered, liquid, gaseous or vaporous medium, flows through the pipeline. Instead of using flanges, the measurement pickup 1 can also be - 12 - connected into the mentioned pipeline using other known means, such as e.g. triclamp connectors or threaded connections. For conveying a volume fraction of the medium to be measured, the measurement pickup includes at least a first pickup tube 4 serving as a measuring tube and held oscillatably in a pickup housing 10. In operation, tube 4 is in communication with the pipeline and is caused to vibrate, at least at times, in at least one oscillation mode suited for determining the physical, measured variable. Besides the pickup housing 10 and the at least one pickup tube 4 held therein, the measurement pickup 1 includes an electromechanical, especially electrodynamic, exciter mechanism 60 acting on the at least one pickup tube 4 for producing and/or maintaining mechanical oscillations, as well as a sensor arrangement 70 reacting to mechanical oscillations, especially bending oscillations, of the pickup tube 4 for producing at least one oscillation measurement signal Svb representing oscillations of the pickup tube 4. At least the pickup tube, as well as components additionally affixed thereto, such as e.g. part of the exciter mechanism 60 and part of the sensor arrangement 70, thus form, essentially, an inner oscillation system of the measurement pickup. For determining the at least one physical, measured variable on the basis of the at least one oscillation measurement signal, the exciter mechanism 60 and the sensor arrangement 70 are, additionally, as usual for such measurement pickups, coupled in suitable manner, for example galvanically and/or opto-electronically, with a measuring and operating circuit appropriately provided in the measuring device electronics 20. The measuring and operating circuit, in turn, produces, on the one hand, an exciter signal Sxc controlled, for example, with respect to an exciter current and/or an exciter voltage, and appropriately driving the exciter mechanism 60. On the other hand, the measuring and operating circuit receives the at least one oscillation measurement signal svb of the sensor arrangement 70 and generates therefrom desired measured values, which, for example, can represent a mass flow rate, a density and/or a viscosity of the medium to be measured and which can be displayed, if required, on site or also, as required, further processed at a higher level. The measuring device electronics 20, including the measuring and operating circuit, can, for example, be accommodated in a separate electronics housing 9, which is arranged removed from the measurement pickup or, for forming a single, compact device, affixed directly on the measurement pickup 1, for example externally on the pickup housing 10. In the case of the example of an embodiment shown in Fig. 1, therefore, a neck-like transition piece 8 is provided on the pickup housing to serve for holding the electronics housing 9. In Figs. 4 to 6, however, the transition piece 8 and the electronics housing 9 have been omitted; only in Fig. 6 can a recessed seating surface 63 be seen in a wall of the pickup housing 10 for the transition piece 8. In the seating surface 63, an electric feed-through 64 is arranged, by means of which electric connections for the exciter mechanism 60 and for the sensor arrangement 70, as well as for possible other electric components, such as e.g. pressure and/or temperature sensors possibly present in measurement pickup 1. The measurement pickup 1 includes, as already indicated, at least one pickup tube 4 serving as measuring tube, with the at least one pickup tube 4 having, in an advantageous embodiment of the invention, at least one tube segment 41 bent at least sectionally in at least one plane. The pickup tube 4 can, in such case, exhibit, for example, a distinct U-shape, such as is also shown in US-B 6,776,052, or, as shown in Figs. 4 - 6, and also proposed in US-B 6,802,224 or US-B 6,711,958, it can be embodied in an essentially V-shape. Additionally, the pickup tube can, however, also, as e.g. described in US-A 5,796,011, be bent only slightly rectangularly or trapezoidally, or, as shown e.g. in WO-A 01/65213, US-B 6,308,580, US-A 5,301,557, US-A 6,092,429, or US-A 6,044,715, be bent distinctly rectangularly or trapezoidally. Suited as material for the pickup tube are, especially, steel, especially high-grade and/ or stainless steel, titanium zirconium or tantalum. Moreover, however, practically any other material usually used, or at least suited, therefor can serve as material for the at least one pickup tube. - 13 - As already mentioned, the measurement pickup 1 is provided especially for measurements also of high mass flow rates in a pipeline of large caliber. Due to this, a further embodiment of the measurement pickup 1 provides that the at least one pickup tube 4 has an inner diameter which amounts at least to 80 mm. Especially, the at least one pickup tube 4 is so embodied that its inner diameter is greater than 100 mm, especially also greater than 110 mm. Further, the at least one pickup tube 4 is so dimensioned in another embodiment that it has a stretched length of at least 1000 mm. Especially, the measuring tube is, in such case, so designed that its stretched length is greater than 1500 mm. In line with this, at least for the case in which the at least one pickup tube 4 is made of steel, a mass of at least 10 kg results for the tube 4 in the case of the usual wall thicknesses of somewhat more than 1 mm. In a further embodiment of the invention, the at least one pickup tube is, however, so dimensioned that it exhibits a mass of more than 25 kg, due to a comparatively large wall thickness of about 5 mm and/or a comparatively large stretched length of about 2000 mm. Besides pickup tube 4, it is further possible, as also shown in Figs. 5 and 6, to provide a second pickup tube 5 in the measurement pickup. Especially, tube 5 is essentially identical to the first pickup tube 4 and likewise serves to convey at least a volume fraction of the medium to be measured. In a further embodiment of the invention, the second pickup tube 5 likewise has at least one bent tube segment 51. The two pickup tubes, especially in the case in which they extend at least sectionally in parallel with one another, as indicated in Figs. 5, 9 and 11, and shown, for example, also in US-B 6,711,958, US-A 5,796,011, and US-A 5301,557, can be connected together by means of appropriate distributer pieces 11,12 on their inlet and outlet ends to form flow paths flowed-through in parallel during operation; they can, however, also, as shown e.g. in US-A 6,044,715, be connected serially together to form flow paths lying one after the other. Moreover, it is, however, also possible, as, for example, also proposed in US-B 6,666,098 or US-A 5,549,009, to use only one of the two pickup tubes as measuring tube for conveying the medium and the other as a blind tube not containing medium to be measured flowing through it and, instead, serving for reducing intrinsic imbalances in the measurement pickup. In case required, mechanical stresses and/or vibrations caused possibly or at least potentially by the pickup housing at the inlet and outlet ends on the vibrating pickup tubes can be minimized e.g. by connecting the pickup tubes mechanically together, as is usual in the case of measurement pickups of the described kind, at the inlet end by means of at least a first node plate 217 and at the outlet end by means of at least a second node plate 218. Moreover, mechanical eigenfrequencies of the two pickup tubes 4, 5 and, thus, also mechanical eigenfrequencies of the inner oscillation system, can be influenced intentionally by means of the node plates 217,218, be it through their dimensions and/or their positioning. Considering that, as already mentioned, each of the pickup tubes 4,5 weighs easily far beyond 10 kg and, in such case, as evident without more from the above dimensional details, can have a capacity of 10 1 or more, the inner oscillation system including the two pickup tubes 4, 5 can reach a total mass of far above 50 kg, at least in the case of a medium of high density flowing therethrough. Especially in the case of use of pickup tubes with comparatively large inner diameter, large wall thickness and large stretched length, the mass of the inner oscillation system can amount to, without more, figures greater than 70 kg or, at least with medium flowing therethrough, more than 90 kg. In the case of the illustrated example of an embodiment, the two pickup tubes 4, 5 are excited by the electromechanical exciter mechanism 60, affixed at least in part thereto, to cantilever-type vibrations, preferably to an instantaneous, mechanical eigenfrequency of the inner oscillation system formed by means of the two pickup tubes 4, 5. In such case, pickup tubes 4, 5 are deflected laterally out of the above-mentioned plane and caused to oscillate in the - 14 - manner of a tuning fork essentially with mutually opposite phase. Said differently, the tube segments 41,51 oscillate in a bending oscillation mode in the manner of cantilevers clamped at one end. In the illustrated example of an embodiment, the exciter mechanism 60 has for this purpose an oscillation exciter arranged in the case of each pickup tube 4, 5 in the area of its vertex, about at the half-length point. The oscillation exciter can be, for example, an electrodynamic type exciter, thus an oscillation exciter implemented by means of a magnet coil 62 affixed to the pickup tube 5 and an armature 61 correspondingly affixed to the other pickup tube 4 for plunging movement in the coil 62. For registering vibrations of the pickup tube and for producing the at least one oscillation measurement signal representing oscillations of the pickup tube, there is further provided, as already mentioned, a sensor arrangement, by means of which, vibrations, especially inlet end, and outlet end, vibrations of the tube segment 41 can be signalized and sent to a further electronic processing. In the illustrated example of an embodiment, the sensor arrangement has for this purpose a first oscillation sensor arranged at the inlet end of the at least one pickup tube 4, and a second oscillation sensor, especially one essentially identical, or of equal construction, to the first oscillation sensor, arranged on the outlet end of the at least one pickup tube. The oscillation sensors can likewise be sensors of electrodynamic type, thus oscillation sensors implemented, in each case, by means of a magnet coil 72, 82 affixed to the pickup tube 5 and an armature 71, 81 correspondingly affixed to the other pickup tube 4 for plunging motion into the opposing magnet coil. Besides this, other oscillation sensors known to those skilled in the art, for instance opto-electronic oscillation sensors, can be used as the oscillation sensors. The at least one pickup tube 4 of the measurement pickup is, as is clear from the combination of Figs. 3a, b and 5, and as is also usual in the case of measurement pickups of such type, essentially completely encased by the pickup housing 10. The pickup housing 10 serves not only for holding the pickup tube 4, 5, but also for protecting the internal components of the measurement pickup 1, such as, for example, the exciter mechanism and the sensor arrangement, and components of the measurement pickup placed within the pickup housing, from external, environmental influences, such as e.g. dust or water spray. Beyond this, the pickup housing 10 can additionally be so embodied and dimensioned that it can retain escaping medium, as completely as possible, within the pickup housing, up to a required maximum excess pressure, in the case of possible damage to the at least one pickup tube 4, e.g. by cracking or bursting. The material for the pickup housing, especially the housing cap 7, can be e.g. steel, such as structural steel or stainless steel, or also other suitable, high-strength materials. In another embodiment of the measurement pickup, the at least one pickup tube 4, especially one at least sectionally curved, and the pickup housing are made of the same material, especially steel or high-grade and/or stainless steel, or at least of materials similar to one another, especially various types of steel. Additionally, it is provided that the flanges, as shown also in Figs. 3a, b and as is quite usual in the case of measurement pickups of this type, are formed as integral components of the pickup housing, in order, in this way, to achieve shortest possible installed length, coupled with highest possible stability of the measurement pickup; in the same way, possibly provided distributor pieces 11, 12 can also be directly integrated into the pickup housing. In a first variant of the measurement pickup, the pickup housing 10 includes a carrier element 6 illustrated here as a laterally at least partially open, carrier cylinder, which, as shown in Figs. 3 and 4, is so mechanically connected with the at least one pickup tube at the inlet and outlet ends, that the at least one bent tube segment 41 protrudes laterally outwards from the carrier cylinder. Furthermore, the pickup housing has a housing cap 7, arranged spaced at least from the bent tube segment of the pickup tube 4 and affixed to the carrier element 6, especially lastingly and/or medium-tightly, for housing at least the at least one bent tube segment of the at least one pickup tube 4. In the case of the example of an embodiment illustrated in Fig. 3, - 15 - the pickup tube 4 is so held in the, here, tubular carrier element 6 at the inlet and outlet ends, that the oscillatable tube segment 41, extending through two cutouts 61, 62 of the carrier element, protrudes laterally outwards and, consequently, into the housing cap 7 likewise affixed to the carrier element 6. It is also to be mentioned here, in this connection, that, instead of the essentially tubular carrier element 6 illustrated in Figs. 3 and 4, also an, as required, solid carrier cylinder with another suitable cross section can be used, for example a carrier element more in the shape of a beam. Depending on which form and stretched length is actually selected for the at least one pickup tube 4, the, here, essentially cylindrical carrier element has a length which is essentially equal to, or somewhat shorter than, the stretched length of the pickup tube. In keeping with this and with reference to the above-mentioned dimensions of the at least one pickup tube 4, the carrier element, in one embodiment of the measurement pickup, has a length likewise of at least about 1000 mm. Preferably, the cylindrical carrier element is implemented, however, with a length of more than 1200 mm. Furthermore, the carrier element, especially for the case in which it is made of steel, has a mass of at least 70 kg. In a further embodiment of the first variant of the measurement pickup, the carrier element is, however, so embodied and so dimensioned, that its mass amounts to more man 140 kg. Corresponding to this, the measurement pickup of the invention is so embodied and so dimensioned that a mass ratio of a total mass of the outer oscillation system to a total mass of the inner oscillation system can, without more, be smaller than 3, especially smaller than 2. The housing cap 7 serving for the housing of the tube segment 41 includes, as shown schematically in Fig. 3, a trough-shaped cap segment 10c, as well as an essentially planar, first, lateral housing segment 10a and a second lateral housing segment 10b essentially mirror symmetric thereto. The form of the cap segment 10c corresponds, as evident, without more, from the combination of Figs. 3a and 3b, essentially to that of a toroidal shell. In keeping with this, the cap segment 10c has an essentially circular arc-shaped, preferably semicircularly shaped, cross section of predetermined radius r and, at least virtually, an essentially circular arc-shaped, first segment edge 10c with an essentially larger radius R in comparison to the radius r, as well as a second segment edge 10c1 formed essentially identically to the first segment edge. In case required, both the cross section and the segment need not be ideally circular, but can, instead be slightly elliptical. As is clear from the combination of Figs. 1, 2 and 3, the lateral housing segments 10a, 10b are each connected via a circular arc-shaped, edge segment 10a, 10b, respectively, with the first, respectively second edge segment 10c, 10c' of the cap segment 10c, and, indeed, in such a manner that the lateral housing segments 10a, 10b are each oriented in a tangential plane of the cap segment 10c and, consequently, are oriented essentially aligned with a tangent to the associated edge segment lOca, lOcb, respectively. Stated differently, between the cap segment and the housing segment 10c, 10a, respectively the cap segment and the housing segment 10c, 10b, there is, in each case, a largely continuous, thus as smooth as possible, transition created, in which, in the case of allowed internal excess pressure, there are, as much as possible, no, or only very little, bending stresses produced. Moreover, the housing cap is affixed to the carrier element 6 via a third edge segment 10c+ and a fourth edge segment 10c# of the cap segment 10c, as well as via, in each case, a second edge segment 10a1,10b1 of the first and second lateral housing segments 10a, 10b, and, indeed, in such a manner that the cap segment and the housing segments 10c, 10a, 10b remain spaced from the at least one vibrating tube segment 41 during operation. For manufacturing the housing cap 7, the segments 10c, 10a, 10b are e.g. in each case, prefabricated separately and subsequently joined together, especially welded together. Advantageously, in the manufacture of the housing cap 7, e.g. also the method described in the already mentioned WO-A 03/021202 for manufacture of a metal cap usable as a housing cap 7 can be used, in which this is formed by welding of two essentially identically formed cap halves, especially halves cut out of a plate-shaped stock, with an edge bead, especially a bead in the shape of a quarter-torus. Further, the housing cap 7 can also be deep-drawn from a metal sheet of appropriate thickness. - 16 - In an embodiment of this first variant of the measurement pickup, the housing cap 7 is so dimensioned that it has, especially when using steel as housing material, a mass of at least 10 kg, especially, however, of more than 20 kg. Considering that the carrier element can, by all means, have a mass of 70 kg or more, it is clear that the pickup housing mass can amount to at least 80 kg, especially, however, to more than 160 kg. However, for the above mentioned case where the flanges and/or distributer pieces are provided for the total mass of the outer oscillation system in the measurement pickup and these, to such extent, also make up part of the outer oscillation system, a correspondingly higher mass must be computed and considered when matching the outer to the inner, oscillation system. At least to such extent, the mass of the total outer oscillation system can amount, without more, also to 200 kg or considerably beyond. Especially in the case of use of pickup tubes with an inner diameter of more than 100 mm, a mass of far more than 300 kg can be computed. In the example of an embodiment of the first variant of the measurement pickup 1 shown here, as shown schematically in Figs. 4 and 6, transport eyes are affixed to the carrier element 6 at the inlet and outlet ends. These eyes serve to provide defined attachment points for possible installing aids, such as e.g. appropriate cables or belts of lifting equipment, in order better to avoid damaging of the possibly more than 500 kg heavy measurement pickup, for example as a result of inappropriate transport and/or unsuitable choice of attachment points. In a second variant of the measurement pickup, carrier element 6 of the pickup housing 10 is provided in the form of a carrier frame, which is so connected mechanically with the at least one pickup tube 4 at the inlet and outlet ends, that the at least one bent tube segment extends within the carrier frame. Additionally, the pickup housing 10 includes, in the case of this variant of the measurement pickup, a first housing segment arranged laterally alongside the at least one bent tube segment 41 of the at least one pickup tube 4 and affixed laterally on the carrier frame, especially lastingly and/or medium-tightly, as well as a second housing segment arranged laterally alongside the at least one bent tube segment of the at least one pickup tube and affixed on the carrier frame, especially lastingly and/or medium-tightly. The two housing segments are, in such case, arranged lying opposite to one another in such a manner that the at least one bent tube segment of the at least one pickup tube extends at least sectionally between the two housing segments. As is apparent from the combination of Figs. 5 to 7 and 9 to 11, both in the case of the example of an embodiment for the first variant of the measurement pickup and also in the case of the example of an embodiment for the second variant of the measurement pickup, the carrier cylinder, or the carrier frame, as the case may be, and the two housing segments are moreover so formed and the two housing segments, especially segments which are essentially plate-shaped, are each so connected laterally with the carrier cylinder, or carrier frame, as the case may be, that they extend at least sectionally laterally essentially parallel to the bent tube segment 41. In a further development of the first and/or the second variant of the measurement pickup 1, it is provided, especially for the case in which steel serves as material for the housing segments, that the pickup housing has a minimum wall thickness smaller than 6 mm. As can be deduced from the above explanations without difficulty, the inner oscillation system of the measurement pickup 1 formed by the at least one pickup tube 4, by the medium conveyed at least instantaneously therein, and, at least in part, by the exciter mechanism 60 and the sensor arrangement 70, executes during operation of the measurement pickup 1, at least at times, mechanical oscillations with at least one wanted oscillation frequency Fn, with the mechanical oscillations being in the form, at least at times and/or at least in part, of lateral oscillations, especially bending oscillations. The wanted oscillation frequency Fn is, in such case, in manner known to those skilled in the art, dependent both on the size, shape and - 17 - material of the pickup tube 4 and, especially, on an instantaneous density of the medium, and, within these constraints, variable during operation of the measurement pickup within a predetermined wanted frequency band A Fn exhibiting a lower and an upper limit frequency. In a further development of the measurement pickup, it is provided during operation of the same that the instantaneous wanted oscillation frequency Fn of the inner oscillation system is so controlled and so tuned that it corresponds essentially to an instantaneous, natural eigenfrequency of the inner oscillation system. As already indicated above, the pickup housing 10 itself has a multiplicity of natural oscillation modes. Furthermore, it results from the above explanations, that the mass ratio of the total mass of the outer oscillation system to the total mass of the inner oscillation system, at least when using comparatively large pickup tubes, can, at least at times, be markedly smaller than the above-discussed critical value of 4, as a result of which also eigenmodes of the external oscillation system, especially of the housing segments, can be established quite near to the wanted frequency band A Fn or even within such, for the case in which the pickup housing, in conventional manner, would be allowed to oscillate freely. For suppressing or extinguishing at least one natural oscillation mode of the pickup housing disturbing oscillations of the measuring tube potentially and, to such extent, also the measurement, the measurement pickup 10 of the invention, therefore, has additionally at least a first support element 13a affixed, especially directly, to the pickup housing and serving for the formation of essentially locationally fixed oscillation nodes in the pickup housing. This support element 13a, to such extent, belongs likewise to the outer oscillation system of the measurement pickup. Therefore, by means of the at least one support element, essentially a blocked frequency band AFs is created against potentially harmful disturbing frequencies Fs of the outer oscillation system. The at least one support element 13a and the pickup housing 10 are, in such case, especially so matched to one another that the blocked frequency band AFs has a bandwidth, which, at least with a band width of the wanted frequency band AFn initially calibrated as measuring range and, to this extent, predetermined, is at least congruent and, if possible, even somewhat greater than the band width of the wanted frequency band. Stated differently, in the case of measurement pickups of the invention, it can be quite acceptable that the outer oscillation system of the measurement pickup possibly also has at least one oscillation mode with a lowest natural eigenfrequency, which is smaller than the predetermined, lower limit frequency of the wanted frequency band AFn. Considering that the inner oscillation system is caused, during operation, to oscillate at a natural eigenfrequency, it is further to be assured that it at least has an oscillation mode with a natural eigenfrequency, which, during operation, is; always greater than the lowest natural eigenfrequency of the outer oscillation system. Equally, the inner oscillation system has at least one oscillation mode with a natural eigenfrequency, which, during operation, is always smaller than the upper limit frequency of the wanted frequency band AFn. In an embodiment of the measurement pickup, the outer and inner oscillation systems are, in such case, so matched to one another that the wanted frequency band AFn of the inner oscillation system and, accordingly, also the blocked frequency band AFs of the outer oscillation system each have a bandwidth of at least 50 Hz. In a further embodiment of the measurement pickup, a lower limit frequency of the blocked frequency band is, therefore, selected to be at least 5% and/or 10 Hz smaller that the predetermined lower limit frequency of the wanted frequency band AFn. Consequently, the measurement pickup of the invention is also suited for measuring those media flows whose density during; operation of the measurement pickup fluctuates by more than 20 kg/m3, such as can be the case for two or more phase media flows or also in the case of discontinuous media streams. In a further embodiment of the measurement pickup, the lower limit frequency of the wanted frequency band AFn is preferably calibrated, and, to such extent, also the lower limit frequency of the blocked frequency band AFs is set, for media having a density of more than 400 kg/m3. - 18 - Especially, the lower limit frequency of the wanted frequency band AFn is further given, and, accordingly, the lower limit frequency of the blocked frequency band AFs is so selected, that it corresponds to an eigenfrequency of the inner oscillation system, when a medium with a density of smaller than or equal to 2000 kg/m3 is flowing in the at least one pickup tube 4. In another embodiment of the measurement pickup 1, the upper limit frequency of the wanted frequency band AFn is for the state in which the density of the medium is essentially zero, thus about equal to a density of air. It is to be noted here further that the wanted oscillation frequency Fn of the inner oscillation system, in the case of measurement pickups of the described kind, usually is dependent on, or at least controlled as a function of, an instantaneous viscosity of the medium. Accordingly, in a further embodiment, the upper limit frequency of the wanted frequency band AFn is given by the state in which the viscosity of the medium is smaller than 10010"6 Pas, especially about equal to a viscosity of air. Since the measurement pickup is provided especially also for the measuring of oils, especially petroleum, the lower limit frequency of the wanted frequency band AFn is predetermined in a further embodiment for a medium, whose viscosity is greater than 30010"6 Pas. Furthermore, the lower limit frequency of the wanted frequency band AFn in a further embodiment of the measurement pickup is then given for the case in which the viscosity of the medium is smaller than 300010"6 Pas. In an embodiment of the outer oscillation system of the measurement pickup 1, the pickup housing 10 and the at least one support element 13a are so formed and so connected mechanically together that the outer oscillation system during operation executes, at the most, at least within the wanted frequency band AFn, only those undesired disturbance oscillations for which a disturbance oscillation power instantaneously dissipated by the disturbance oscillations is substantially smaller than a wanted oscillation power instantaneously dissipated by the oscillations of the inner oscillation system at wanted oscillation frequency. For example, an average value of all oscillation powers instantaneously dissipated by disturbance oscillations within the wanted frequency band AFn can be considered as the disturbance oscillation power. For the high accuracy of measurement required in the practice, it has, in such case, further proved to be of advantage, if a corresponding wanted-to-disturbance power ratio of the wanted oscillation power to the disturbance oscillation power is greater than 5, at least, however, greater than 2. For example, an average value of all oscillation powers instantaneously dissipated by disturbance oscillations within the wanted frequency band AFn can serve as a measure for the disturbance oscillation power. Alternatively or in supplementation thereto, the pickup housing 10 and the at least one support element 13a are so formed and so connected mechanically together that the outer oscillation system, during operation, at least within the wanted frequency band AFn, executes no, or, at most, only such undesired disturbance oscillations where an instantaneous, maximum disturbance oscillation amplitude of the disturbance oscillations of the outer oscillation system is substantially smaller than an instantaneous maximum oscillation amplitude of the oscillations of the inner oscillation system, especially of the pickup tube 4 itself. Additionally, the pickup housing 10 and the at least one support element 13a can also be so formed and so connected together that an instantaneous disturbance oscillation quality factor of the disturbance oscillations possibly executed by the outer oscillation system is substantially smaller than an instantaneous wanted oscillation quality factor of the oscillations of the inner oscillation system at the wanted oscillation frequency AFn. In a further embodiment of the invention, the pickup housing 10 and the at least one support element 13a are so formed and so connected mechanically together that a wanted-to-disturbance amplitude ratio of the instantaneously maximum oscillation amplitude of the oscillations of the inner oscillation system to the instantaneously maximum disturbance oscillation amplitude is greater than 1.5, especially, however, greater than 2 and/or that a wanted-to-disturbance oscillation quality factor ratio of the instantaneous wanted oscillation quality factor to the instantaneous disturbance oscillation quality factor amounts to at least 50:1, especially greater than 80. - 19 - For suppressing the at least one disturbing oscillation mode of the pickup housing 10 as effectively as possible, the at least one support element is affixed to the same, at least pointwise, in an area of the pickup housing, in which such oscillation mode has an oscillation antinode, especially a local oscillation amplitude, or at least would have, if the support element had not been applied to the pickup housing. In the case of the example of an embodiment illustrated here, the at least one support element 13a is embodied by means of at least one solid plate (for example, likewise made of steel), which, as evident, without more, from the Figs. 3a, b, 4 to 7, as well as 9 and 10, is connected, especially at least partially releasably, with the pickup housing 10 at at least two, mutually oppositely lying, affixation locations 11a, 12a. Preferably, the at least one support element 13a is further, at least pointwise, welded and/or soldered, especially hard soldered, or brazed, with the pickup housing 10. Alternatively or in supplementation thereof, the at least one support element 13a can have an, at least pointwise, screwed attachment with the pickup housing 10, especially with the housing segments running laterally to the pickup tube 4. In a further embodiment of the measurement pickup, the at least one support element is, accordingly, as evident, without more, from the combination of Figs. 4 to 7, as well as 9 and 10, at least partly affixed to the housing segments of ihe pickup housing 10 running laterally to the measuring tube, by means of a bolt, as well as a washer screwed thereon and/or welded therewith, for holding the housing segment with as little gap as possible against the support element, possibly with interpositioning of disk springs and/or damping washers. As also shown by way of example in Fig. 7, the at least one support element 13a can, moreover, be affixed additionally, at least in part, also to the carrier element - here the carrier cylinder - e.g. by means of welding or soldering. Instead of such bonding of materials, or in supplementation thereof, of course, also appropriate screw connections can serve for affixing the support element 13a to the carrier element. In a further development of the measurement pickup of the invention, additionally at least a first oscillation-damping inlay 14a, damping possible oscillations of the pickup housing 10, is provided coupled to the pickup housing 10, especially extending at least sectionally between the at least a first, oscillation-damping support element and the pickup housing. Inlay 14a can e.g. be made of a plastic, a rubber, a silicone or the like, and have, for example, the form of a strip or a mat. In an embodiment of this further development of the invention, the inlay 14a is so formed and so arranged in the measurement pickup that it extends, at least sectionally, between the at least one support element 13a and the pickup housing 10. For the above-described case in which the pickup housing has the carrier cylinder 6, the inlay 14 can alternatively or in supplementation of the preceding; embodiment, also be so arranged in the measurement pickup that it extends, at least sectionally, along the carrier cylinder 6 and, in such case, also makes flush contact. Moreover, still other, like, oscillation-damping inlays 14b can be inserted in the measurement pickup, arranged internally on the pickup housing. In another, further development of the measurement pickup, at least a second support element 13b is additionally provided, likewise affixed to the pickup housing 10 and serving for the formation of essentially locationally fixed oscillation nodes in the pickup housing 10, with the outer oscillation system of the measurement pickup 1 including, in the case of this further development, then, at least also the second support element 13b. In an embodiment of this further development of the measurement pickup, the first support element 13a and the second support element 13b, especially a second support element 13b likewise affixed directly to the pickup housing 10, are constructed essentially identically to one another. Also, in the case of this further development of the measurement pickup,, the first support element 13a is affixed to the pickup housing 10 at least partly in the vicinity of the first oscillation sensor 71, 72, and the second support element 13b at least partly in the vicinity of the second oscillation sensor 81,82. In an additional embodiment of this further development of the measurement pickup, - 20 - such includes also a third support element 13c likewise affixed, especially directly, to the pickup housing and likewise serving for the formation of essentially locationally fixed oscillation nodes in the pickup housing, with the outer oscillation system of the measurement pickup, to such extent, then including at least also the third support element. As evident from Fig. 4, the third support element is, in the case of the example of an embodiment illustrated here, at least partly affixed in the vicinity of the oscillation exciter to the pickup housing 10, here to the cylindrical carrier element 6. Experiments have shown that, already by means of just a few of such support elements, a blocked frequency band can, in very simple manner, be created for the outer oscillation system, in order to enable operation of the inner oscillation system in a wanted frequency band of sufficiently large bandwidth. For example;, the frequency spectrum shown by way of example in Fig. 8 was experimentally determined for an outer oscillation system of a measurement pickup built according to the first variant with three support elements. Clearly perceivable is that the outer oscillation system has practically no natural oscillation modes between about 210 Hz and far beyond 270 Hz, with the wanted frequency band for the same measurement pickup lying, in turn, between about 210 Hz and 270 Hz. Additionally, it has been found that both the bandwidth of the blocked frequency band and also its position in the frequency spectrum can be adjusted easily, for the wanted frequency band to be expected in the actual operation of the measurement pickup, by small changes of the shape and/or the position of the support elements. Thus, by the use of the support elements, it is also possible to manufacture measurement pickups of the described kind cost-effectively, even with larger nominal diameters of 250 mm or above, on the one hand, also with a measuring accuracy of above 99.8% and, on the other hand, to hold the installed dimensions and the installed mass of such measurement pickups sufficiently within limits, such that, in spite of large nominal diameter, transport, installation and operation can be accomplished still in economically reasonable fashion. - 21 - WE CLAIM: 1. Vibration-type measurement pickup for measuring a flowable medium conveyed in a pipeline, especially a gas, liquid, powder or other flowable substance, comprising: -a pickup housing (10), which exhibits a multiplicity of natural oscillation modes; -at least a first pickup tube (4) for conveying at least a volume fraction of the medium to be measured, said tube being held oscillatably in the pickup housing (10) and vibrating, at least at times; -an electromechanical, especially electrodynamic, exciter mechanism (60) acting on the at least one pickup tube for producing and/or maintaining mechanical oscillations of the at least one pickup tube (4); -a sensor arrangement reacting to movements of the pickup tube (4), especially bending oscillations, for producing at least one oscillation measurement signal (svt>) representing oscillations of the pickup tube (4); as well as -at least a first support element (13a) fixed, especially directly, to the pickup housing (10) and serving for the formation of essentially locationally fixed oscillation nodes in the pickup housing (10) for suppressing or erasing at least one natural oscillation mode of the pickup housing (10); -wherein an outer oscillation system of the measurement pickup is formed by the pickup housing and at least the at least one support element and an inner oscillation system of the measurement pickup is formed by the at least one pickup tube (4), the medium at least instantaneously conveyed therein, and, at least in part, by the exciter mechanism (60) and the sensor arrangement (70); and -wherein the inner oscillation system, driven by the exciter mechanism (60), executes, at least at times during operation of the measurement pickup, mechanical oscillations, especially in the form of lateral oscillations, having at least one wanted oscillation frequency (Fn), -which is both dependent on size, form and material of the pickup tube (4) as well as also on an instantaneous density of the medium, and -which, during operation of the measurement pickup, is variable within a predetermined, wanted, frequency band (AFn) having a lower limit frequency and an upper limit frequency. 2. Measurement pickup as claimed in claim 1, wherein the pickup housing (10) and the at least one support element (13a) are so formed and so connected mechanically together, that the outer oscillation system of the measurement pickup at least formed thereby, in spite of the oscillations of the pickup tube (4), executes, at least within the wanted frequency band (AFn), no, or possibly only such undesired, disturbance oscillations, of which an instantaneously dissipated, disturbance oscillation power is substantially smaller than a wanted oscillation power instantaneously dissipated at the wanted oscillation frequency (Fn) by the oscillations of the inner oscillation system. 3. Measurement pickup as claimed in the preceding claim, wherein a wanted-to-disturbance power ratio of the wanted oscillation power to the disturbance oscillation power is at least greater than 2, especially greater than 5. 4. Measurement pickup as claimed in claim 2 or 3, wherein the disturbance oscillation power corresponds to an average value of all oscillation powers instantaneously dissipated within the wanted frequency band (AFn) by disturbance oscillations. 5. Measurement pickup as claimed in one of the preceding claims, wherein the pickup housing (10) and the at least one support element (13a) are so formed and so mechanically connected together, that the outer oscillation system of the measurement pickup formed at least thereby executes, at least within the wanted frequency band - 22 - and despite the oscillations of the pickup tube (4), no or possibly only such undesired disturbance oscillations, of which an instantaneously maximum disturbance oscillation amplitude is substantially smaller than an instantaneously maximum oscillation amplitude of the oscillations of the inner oscillation system, especially of the pickup tube (4) itself. 6. Measurement pickup as claimed in the preceding claim, wherein a wanted-to-disturbance amplitude ratio of the instantaneously maximum oscillation amplitude of the oscillations of the inner oscillation system to the instantaneously maximum disturbance oscillation amplitude is greater than 1.5, especially greater than 2. 7. Measurement pickup as claimed in one of the claims 1 to 3, wherein the pickup housing (10) and the at least one support element (13a) are so formed and so connected mechanically together that the measurement pickup outer oscillation system, at least formed thereby, executes, in spite of the oscillations of the pickup tube (4) and at least within the wanted frequency band (AFn), no, or possibly only such, undesired disturbance oscillations, of which an instantaneous disturbance oscillation quality factor is substantially smaller than an instantaneous wanted oscillation quality factor of the oscillations of the inner oscillation system at the wanted oscillation frequency (Fn). 8. Measurement pickup as claimed in the preceding claim, wherein a wanted-to-disturbance oscillation quality factor ratio of the instantaneous wanted oscillation quality factor to the instantaneous disturbance oscillation quality factor is at least 50:1, especially greater than 80. 9. Measurement pickup as claimed in one of the preceding claims, wherein the pickup housing (10) includes an, especially steel, carrier element (6), with which the at least one pickup tube (4) is mechanically connected at its inlet and outlet ends. 10. Measurement pickup as claimed in the preceding claim, wherein the carrier element (6) of the pickup housing (10) is embodied as an, especially essentially tubular, carrier cylinder, with which the at least one pickup tube (4) is mechanically connected at its inlet and outlet ends. 11. Measurement pickup as claimed in the preceding claim, wherein the carrier element (6) has a mass of at least 70 kg, especially of more than 140 kg, and/or a length of at least 1000 mm, especially of more than 1200 mm. 12. Measurement pickup as claimed in claim 1, wherein the at least one pickup tube (4) has at least one bent tube segment (41). 13. Measurement pickup as claimed in claim 12, wherein the at least one pickup tube (4) has at least one tube segment (41) curved in essentially U- or V-shape. 14. Measurement pickup as claimed in claim 12 or 13, wherein the pickup housing (10) includes: -an essentially cylindrically shaped carrier element (6), especially one made of steel, which is mechanically connected with the at least one pickup tube (4) at its inlet and outlet ends, as well as -a housing cap (7) arranged spaced from the at least one pickup tube (4) and affixed, especially lastingly and/or medium-tightly, to the carrier element (6) for housing at least the at least one bent tube segment of the pickup tube. - 23 - 15. Measurement pickup as claimed in claim 14, wherein the carrier element (6) is embodied as a laterally, at least partially open, especially tubular, carrier cylinder, which is so connected with the at least one pickup tube (4) that the at least one bent tube segment (41) protrudes laterally out of the carrier cylinder. 16. Measurement pickup as claimed in claim 14 or 15, wherein the carrier cylinder has a mass of at least 70 kg, especially of more than 140 kg; and/ or wherein the housing cap has a mass of at least 10 kg, especially of more than 20 kg- 17. Measurement pickup as claimed in one of the claims 14 to 16, wherein the housing cap (7) includes housing segments (10a, 10b) arranged laterally next to the at least one bent tube segment (41) of the at least one pickup tube (4), especially running at least sectionally essentially parallel to the bent tube segment (41) and/or having an essentially plate-shape. 18. Measurement pickup as claimed in claim 1Z, wherein at least two housing segments (10a, 10b) are arranged lying opposite to one another in such a manner that the at least one bent tube segment (41) of the at least one pickup tube runs at least sectionally between the two housing segments (10a, 10b). 19. Measurement pickup as claimed in claim 17 or 18, wherein the housing cap (7) includes: -a trough-shaped cap segment (10c) -with a circular-arc-shaped, first segment edge (10c) of predetermined radius (R), and -with a second segment edge (10c1) shaped essentially identically to the first segment edge (10c), -wherein the cap segment (10c) has a circular-arc-shaped cross section with a radius (r), which is smaller than the radius R of the first segment edge (10c), -ah essentially planar, first lateral housing segment (10a), -which is connected with the first segment edge (10c) of the cap segment (10c) via a circular-arc-shaped, first segment edge (10a), as well as -a second, lateral housing segment (10b), which is essentially mirror symmetric to the first lateral housing segment (10a) and connected with the second segment edge (10c1) of the first housing segment (10c) via a circular-arc-shaped, first segment edge (10b). 20. Measurement pickup as claimed in the preceding claim, wherein the first and second, lateral housing segments (10a, 10b) each lie in a tangential plane of the cap segment (10c). 21. Measurement pickup as claimed in one of the claims 14 to 20, wherein the at least one support element (13a) is affixed, at least in part, to the cylindrical carrier element (6); and/or wherein the at least one support element (13a) is affixed, at least in part, to the housing cap (7); and/or wherein the at least one support element, which is affixed both to the housing cap (7) and to the cylindrical carrier element (6), at least pointwise, especially at least partly releasably and/or at least pointwise by way of material bonding. 22. Measurement pickup as claimed in claim 12, wherein the pickup housing includes: -a carrier frame, which is mechanically so connected to inlet and outlet ends of the at least one pickup tube that the at least one bent tube segment runs within the carrier frame, - 24 - -a first housing segment arranged laterally next to the at least one bent tube segment of the at least one pickup tube, especially running at least sectionally essentially parallel to the bent tube segment and/or having an essentially plate-shape, and affixed, especially lastingly and medium-tightly, to the carrier frame, as well as -a second housing segment arranged laterally next to the at least one bent tube segment of the at least one pickup tube, especially running, at least sectionally, essentially parallel to the bent tube segment and/or having an essentially plate-shape, and affixed, especially lastingly and medium-tightly, to the carrier frame, -wherein the two housing segments are arranged lying opposite to one another in such a manner that the at least one bent tube segment of the at least one pickup tube runs, at least sectionally, between the two housing segments. 23. Measurement pickup as claimed in one of the claims 18 to 22, wherein the at least one support element (13a, 13b) is affixed, at least in part, to the housing segments; and/or wherein the at least one support element is formed by means of at least one solid plate, which is connected with the pickup housing at at least two mutually opposing affixation locations, especially by means of bolts and/or at least partially releasably. 24. Measurement pickup as claimed in one of the preceding claims, wherein the at least one support element (13a) has a mass of at least 3 kg. 25. Measurement pickup as claimed in one of the preceding claims, - wherein the at least one support element (13a) is at least pointwise welded and/or soldered, especially hard soldered or brazed, with the pickup housing (10); and/or wherein the at least one support element (13a) is at least pointwise screwed to the pickup housing (10); and/or wherein the at least one support element (13a) is at least pointwise affixed to the pickup housing (10) in the region of an oscillation antinode, especially of a local oscillation amplitude, of a natural oscillation mode of the pickup housing (10). 26. Measurement pickup as claimed in one of the preceding claims, further comprising at least one oscillation-damping inlay (14a, 14b) provided coupled to the pickup housing (10), especially extending at least sectionally between the at least one support element (13a) and the pickup housing (10). 27. Measurement pickup as claimed in the preceding claim, wherein the oscillation-damping inlay is made of a plastic, a rubber, a silicone or the like. 28. Measurement pickup as claimed in one of the preceding claims, further comprising a second support element (13b) likewise affixed, especially directly, to the pickup housing (10), especially a second support element essentially identical to the first support element (13a), for forming essentially locationally fixed oscillation nodes in the pickup housing (10), wherein the outer oscillation system of the measurement pickup also includes at least also the second support element (13b). 29. Measurement pickup as claimed in the preceding claim, -wherein the sensor arrangement (70) includes a first oscillation sensor (71, 72), especially a first oscillation sensor arranged on the inlet end of the at least one pickup tube (4), as well as a second oscillation sensor (81, 82), especially a second oscillation sensor arranged on the outlet end of the at least one pickup tube (4), and -wherein the first support element (13a) is affixed to the pickup housing at least in part in the vicinity of the first oscillation sensor (71, 72) and the second support element - 25 - (13b) at least in part in the vicinity of the second oscillation sensor (81,82). 30. Measurement pickup as claimed in claim 29 or 30, further comprising a third support element (13c) likewise affixed, especially directly, to the pickup housing (10) for forming essentially locationally fixed, oscillation nodes in the pickup housing (10), with the outer oscillation system of the measurement pickup then including at least also the third support element (13c). 31. Measurement pickup as claimed in the preceding claim, -wherein the exciter mechanism (70) includes at least one oscillation exciter (61, 62), especially an exciter arranged halfway on the at least one pickup tube, and -wherein the third support element (13c) is at least in part affixed to the pickup housing (10) in the vicinity of the oscillation exciter (61,62). 32. Measurement pickup as claimed in one of the claims 1 to 29, wherein the sensor arrangement (70) includes a first oscillation sensor (71, 72), especially a first oscillation sensor arranged on the at least one pickup tube (4) at its inlet end, and a second oscillation sensor (81,82), especially a second oscillation sensor arranged on the at least one pickup tube (4) at its outlet end. 33. Measurement pickup as claimed in one of the claims 1 to 29 or as claimed in_the preceding claim, wherein the exciter mechanism (60) includes at least one oscillation exciter (61, 62), especially an oscillation exciter arranged halfway along the length of the pickup tube (4). 34. Measurement pickup as claimed in one of the preceding claims, further comprising, for the connecting of the measurement pickup to the pipeline, a first connection flange (2) at an inlet end and a second connection flange (3) at an outlet end, wherein the outer oscillation system of the measurement pickup (10) then includes at least also the first and second connection flanges (2,3). 35. Measurement pickup as claimed in the preceding claim, wherein each of the two connection flanges (2,3) has a mass of more than 50 kg, especially of more than 60 kg. 36. Measurement pickup as claimed in one of the preceding claims, further comprising a second pickup tube (5) essentially identical to the first pickup tube (4) and/or extending essentially parallel to the first pickup tube (4). 37. Measurement pickup as claimed in the preceding claim, further comprising at least one, first node plate connecting the first and second pickup tubes (4,5) together at their inlet ends, and at least one, second node plate (218) connecting the first and second pickup tubes (4,5) together at their outlet ends, wherein the inner oscillation system of the measurement pickup then includes at least also the first and second node plates (217,218). 38. Measurement pickup as claimed in claim 36 or 37, further comprising a first distributor piece (11) connecting the first and second pickup tubes (4, 5) together at their inlet ends, as well as a second distributor piece (12) connecting the first and second pickup tubes (4, 5) together at their outlet ends, wherein the outer oscillation system of the measurement pickup then includes at least also the first and second distributor pieces (11,12). 39. Measurement pickup as claimed in the preceding claim, wherein each of the two distributor pieces (11,12) has a mass of more than 10 kg, especially more than 20 kg. - 26 - 40. Measurement pickup as claimed in one of the preceding claims, wherein the instantaneous wanted oscillation frequency (Fn) essentially corresponds to an instantaneous natural eigenfrequency of the inner oscillation system; and/or wherein the outer oscillation system has at least one oscillation mode with a natural eigenfrequency, which is smaller than the upper limit frequency of the wanted frequency band (AFn) and which is greater than the lower limit frequency of the wanted frequency band (AFn); and/or wherein the upper limit frequency of the wanted frequency band (AFn) is determined for the condition that the density of the medium is essentially zero, especially about equal to a density of air. 41. Measurement pickup as claimed in one of the preceding claims, wherein the outer oscillation system of the measurement pickup has at least one oscillation mode having a lowest natural eigenfrequency, which is smaller than the lower limit frequency of the wanted frequency band (AFn). 42. Measurement pickup as claimed in the preceding claim, wherein the inner oscillation system has at least one oscillation mode with a natural eigenfrequency, which is, during operation, always greater than the lowest natural eigenfrequency of the outer oscillation system. 43. Measurement pickup as claimed in one of the preceding claims, wherein the lower limit frequency of the wanted frequency band (AFn) is determined for the condition that the density of the medium is greater than 400 kg/m3. 44. Measurement pickup as claimed in the preceding claim, wherein the lower limit frequency of the wanted frequency band (AFn) is determined for the condition that the density of the medium is less than 2000 kg/m3. 45. Measurement pickup as claimed in one of the preceding claims, wherein the at least one wanted oscillation frequency (Fn) depends significantly also on an instantaneous viscosity of the medium. 46. Measurement pickup as claimed in the preceding claim, wherein the upper limit frequency of the wanted frequency band (AFn) is determined for the condition that the viscosity of the medium is smaller than 10010"6 Pas, especially about equal to a viscosity of air. 47. Measurement pickup as claimed in claim 45, wherein the lower limit frequency of the wanted frequency band (AFn) is determined for the condition that the viscosity of the medium is greater than 300 • 10"6 Pas. 48. Measurement pickup as claimed in one of the claims 45 to 47, wherein the lower limit frequency of the wanted frequency band (AFn) is determined for the condition that the viscosity of the medium is less than 3000 • 10"6 Pas. 49. Measurement pickup as claimed in one of the preceding claims, wherein the wanted frequency band (AFn) has a band width of at least 20 Hz, especially of more than 50 Hz. 50. Measurement pickup as claimed in one of the preceding claims, wherein the at least one pickup tube (4) and the pickup housing (10) are - 27 - comprised of steel, especially high grade and/or stainless steel; and/or; wherein the pickup housing (10) has a minimum wall thickness less than 6 mm. 51. Measurement pickup as claimed in one of the preceding claims, wherein the at least one pickup tube (4) has a mass of at least 10 kg, especially of greater than 25 kg; and/or wherein the pickup tube (4) has an inner diameter of at least 80 mm, especially greater than 100 mm; wherein the pickup tube (4) has a stretched length of at least 1000 mm, especially greater than 1500 mm; and/or wherein the pickup housing (10) has a mass of at least 80 kg, especially of more than 160 kg. 52. Measurement pickup as claimed in one of the preceding claims, wherein a total mass of the inner oscillation system amounts to at least 70 kg, especially, during operation, at least at times, greater than 90 kg; and/or wherein a total mass of the outer oscillation system amounts to at least 200 kg, especially to greater than 300 kg; and/or wherein an installed mass to nominal diameter ratio of an installed mass of the total measurement pickup to a nominal diameter of the measurement pickup corresponding to a caliber of the pipeline, in whose course the measurement pickup is to be inserted, amounts to at least 1.5 kg/mm, especially to greater than 2 kg/mm; and/or. wherein the installed mass of the total measurement pickup is greater than 200 kg, especially greater than 400 kg. 53. Measurement pickup as claimed in one of the preceding claims, wherein a mass ratio of a total mass of the outer oscillation system to a total mass of the inner oscillation system is, during operation, at least at times, smaller than 3, especially smaller than 2.5. 54. Measurement pickup as claimed in the preceding claim, wherein the mass ratio of the total mass of the outer oscillation system to the total mass of the inner oscillation system is continuously smaller than 3. 55. Use of the measurement pickup of one of the preceding claims for measuring a flowable medium conveyed in a pipeline having a caliber of greater than 150 mm, especially of greater than 250 mm or above, and/or for measuring a mass flow rate of a medium flowing through a pipeline at a rate, at least at times, of greater than 900 t/h, especially, at least at times, of more than 1200 t/h. Dated this 4th day of May, 2007 - 28 - ABSTRACT The measurement pickup includes: A pickup housing (10), which has a multiplicity of natural oscillation modes; as well as at least a first pickup tube (4) held oscillatably in the pickup housing (10), vibrating, at least at times and serving for conveying at least a volume fraction of the medium to be measured; an electromechanical, especially electrodynamic, exciter mechanism (60) acting on the at least one pickup tube for producing and/or maintaining mechanical oscillations of the at least one pickup tube (4); and a sensor arrangement reacting to movements, especially bending oscillations, of the pickup tube (4), for producing at least one oscillation measurement signal (svb) representing oscillations of the pickup tube (4). For suppressing or erasing at least one natural oscillation mode of the pickup housing (10), the measurement pickup has, additionally, at least a first support element (13a) affixed, especially directly, to the pickup housing (10) and serving to form essentially locationally-fixed oscillation nodes in the pickup housing (10). Thus, an outer oscillation system of the measurement pickup is formed by the pickup housing and at least the at least one support element, and an inner oscillation system of the measurement pickup by the at least one pickup tube (4), the medium conveyed at least instantaneously therein, and, at least in part, by the exciter mechanism (60) and the sensor arrangement (70). The inner oscillation system executes, during operation of the measurement pickup, mechanical oscillations with at least one wanted oscillation frequency (Fn), which depends on the size, shape and material of the pickup tube (4) and also on an instantaneous density of the medium, and which varies, during operation of the measurement pickup, within a predetermined wanted frequency band (AFn) having a lower and an upper limit frequency. By use of the support element, it is possible to manufacture vibration-type measurement pickups with large nominal diameters of more than 150 mm and high accuracy of measurement, even while largely maintaining already established and proven forms of construction. To, The Controller of Patents The Patent Office Mumbai. - 29 -

Documents:

667-MUMNP-2007-ABSTRACT(16-12-2009).pdf

667-MUMNP-2007-ABSTRACT(7-5-2007).pdf

667-mumnp-2007-abstract(granted)-(21-1-2010).pdf

667-mumnp-2007-abstract.doc

667-mumnp-2007-abstract.pdf

667-MUMNP-2007-CANCELLED PAGES(16-12-2009).pdf

667-mumnp-2007-cancelled pages(21-1-2010).pdf

667-MUMNP-2007-CLAIMS(7-5-2007).pdf

667-MUMNP-2007-CLAIMS(AMENDED)-(16-12-2009).pdf

667-MUMNP-2007-CLAIMS(AMENDED)-(28-1-2010).pdf

667-mumnp-2007-claims(granted)-(21-1-2010).pdf

667-mumnp-2007-claims.doc

667-mumnp-2007-claims.pdf

667-MUMNP-2007-CORRESPONDENCE(13-1-2010).pdf

667-MUMNP-2007-CORRESPONDENCE(21-1-2010).pdf

667-mumnp-2007-correspondence(6-7-2007).pdf

667-mumnp-2007-correspondence(ipo)-(15-3-2010).pdf

667-mumnp-2007-correspondence(ipo)-(7-1-2009).pdf

667-mumnp-2007-correspondence-others.pdf

667-mumnp-2007-correspondence-received.pdf

667-mumnp-2007-description (complete).pdf

667-MUMNP-2007-DESCRIPTION(COMPLETE)-(7-5-2007).pdf

667-mumnp-2007-description(granted)-(21-1-2010).pdf

667-MUMNP-2007-DRAWING(16-12-2009).pdf

667-MUMNP-2007-DRAWING(7-5-2007).pdf

667-MUMNP-2007-DRAWING(GRANTED)-(21-1-2010).pdf

667-mumnp-2007-drawings.pdf

667-MUMNP-2007-FORM 1(16-12-2009).pdf

667-mumnp-2007-form 1(7-5-2007).pdf

667-MUMNP-2007-FORM 2(COMPLETE)-(7-5-2007).pdf

667-mumnp-2007-form 2(granted)-(21-1-2010).pdf

667-MUMNP-2007-FORM 2(TITLE PAGE)-(16-12-2009).pdf

667-MUMNP-2007-FORM 2(TITLE PAGE)-(7-5-2007).pdf

667-mumnp-2007-form 2(title page)-(granted)-(21-1-2010).pdf

667-MUMNP-2007-FORM 3(16-12-2009).pdf

667-MUMNP-2007-FORM 3(21-1-2010).pdf

667-MUMNP-2007-FORM 3(7-5-2007).pdf

667-MUMNP-2007-FORM 5(16-12-2009).pdf

667-MUMNP-2007-FORM 5(7-5-2007).pdf

667-MUMNP-2007-FORM PCT-ISA-210(16-12-2009).pdf

667-mumnp-2007-form-1.pdf

667-mumnp-2007-form-18.pdf

667-mumnp-2007-form-2.doc

667-mumnp-2007-form-2.pdf

667-mumnp-2007-form-26.pdf

667-mumnp-2007-form-3.pdf

667-mumnp-2007-form-5.pdf

667-mumnp-2007-pct-search report.pdf

667-MUMNP-2007-PETITION UNDER RULE 137(21-1-2010).pdf

667-MUMNP-2007-REPLY TO EXAMINATION REPORT(16-12-2009).pdf

667-MUMNP-2007-SPECIFICATION(AMENDED)-(16-12-2009).pdf

667-MUMNP-2007-WO INTERNATIONAL PUBLICATION REPORT(7-5-2007).pdf

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