Title of Invention

DEVICE FOR THE OPTICAL RECORDING OF AT LEAST ONE CHARACTERISTIC ON A LONGITUDINALLY MOVED THREAD TYPE MATERIAL

Abstract The invention relates to a device and a method for the optical recording of at least one parameter on a longitudinally moved thread-type material. To enable parameters such as the diameter of a thread-type material, the diameter of a yarn package, the hairiness of a yarn etc. I to be determined more simply and more accurately, an optical sensor composed of at least two individual sensors (30), in which at least one individual sensor is so constructed and arranged that at least one measured value is recorded digitally for a parameter, is to be used to record in parallel from the material at least two signals, one at least of which is clocked.
Full Text

comprises individual sensors which operate according to different principles or whose signals are evaluated according to different principles. Said optical sensor has preferably an extent which exceeds that of the material at right angles to its longitudinal direction and is preferably so constructed that the recording of a characteristic takes place at least partly in the same area of the material. The sensors are to be illuminated by directed light, so that the yarn shades off the light between the light source and the sensor. The sensor is connected to an evaluation circuit with which the signals from several individual sensors can also be evaluated jointly.
The advantages achieved by the invention can in particular be considered to reside in the fact that in addition to the diameter of a comparatively smooth material the diameter of a material with a broken surface structure can also be measured in a differentiated matter, without requiring a device that is of very elaborate construction. For example, there can be measured separately on a yam the yam package (without projecting fibres) and the hairiness (portion of projecting fibres) of the yam. Such a sensor can also be adapted to changed measurement conditions by means of evaluation electronics and for example the effect on the sensors of dirt and deposits can be offset or allowed for.
Accordingly the present invention provides a device for the optical recording of at least one characteristic on a longitudinally moved thread-type material comprising an optical sensor composed of at least two individual sensors, in which at least one individual sensor is so constructed and arranged that one measured value is digitally

recorded for the characteristic, characterised in that at least one individual sensor is provided in said sensor for the analog recording of a characteristic.
Accordingly the present invention provides a method for the optical recording of at least one characteristic on a longitudinally moved thread-type material in which one measured value is digitally recorded for the characteristic, characterised in that at least one more value for the characteristic is recorded in analog manner and in that a analog signal and a digital signal are recorded in parallel.
The invention will be described in greater, detail below by means of an example and with reference to the attached drawings, where
Figures 1 to 4 each show a part of the device according to the invention in a simplified representation,
Figures 5 to 8 each show a further part of the device,
Figure 9 is a diagrammatic view of a function of a part of the device,



We Claim:
1. A device for the optical recording of at least one characteristic on a longitudinally moved thread-type material (K) comprising an optical sensor (3, 4, 7) composed of at least two individual sensors (3a, 3b, 6a, 6b, 9a, 9b), in which at least one individual sensor is so constructed and arranged that one measured value is digitally recorded for the characteristic, characterised in that at least one individual sensor (3e, 3f, 5, 8a, 8b) is provided in said sensor for the analog recording of a characteristic.
2. Device according to claim 1, wherein a plurality of individual sensors (3a - 3d, 6a -6k, 9a -9e) are provided for the direct digital recording of a measured value for the characteristic.
3. Device according to claim 1, wherein the individual sensor (5, 8) for the analog recording and at least one individual sensor (6, 9) for the digital recording of a measured value for a characteristic are assigned at least partly to the same area of the material.
4. Device according to claim 1, wherein there are assigned to the individual sensor for the digital recording elements (31, 32) for converting its output signal into at least one binary signal, wherein at least one threshold value (54) is provided.

5. Device according to claim 4, wherein the elements (31, 32) are integrated on an integrated circuit with the individual sensor (30).
6. Device according to claim 1, wherein there is assigned to the sensors a light source (42) for directed light.
7. Device according to claim 1, wherein an optical sensor (10, 11) is disposed parallel to a first and to a second inclined plane (12, 13) respectively.
8. A method for the optical recording of at least one characteristic on a longitudinally moved thread-type material (K), in which one measured value is digitally recorded for the characteristic, wherein at least one more value for the characteristic is recorded in analog manner and in that a analog signal and a digital signal (57, 58) are recorded in parallel.
9. Method according to claim 8, wherein one signal is recorded in clocked form.
10. Method according to claim 9, wherein the signal recorded in clocked form is integrated during a preset time and reset after the predetermined time (48).
11. Method according to claim 9, wherein the signal recorded in clocked form is compared continuously with a threshold value (54) and an output signal is generated if the threshold value is reached within the predetermined time.

12. Method according to claim 10, wherein the predetermined time is influenced by
operations which concern a light source (42) for illuminating the material and is
changeable thereafter
13. A device for the optical recording of at least one characteristic on a longitudinally moved thread-type material, substantially as herein described, with reference to the accompanying drawings.
14. A method for the optical recording of at least one characteristic on a longitudinally moved thread-type material, substantially as herein described, with reference to the accompanying drawings.


Documents:

1769-mas-1997- abstract.pdf

1769-mas-1997- assignment.pdf

1769-mas-1997- claims duplicate.pdf

1769-mas-1997- claims original.pdf

1769-mas-1997- correspondence others.pdf

1769-mas-1997- correspondence po.pdf

1769-mas-1997- descripition complete duplicate.pdf

1769-mas-1997- descripition complete original .pdf

1769-mas-1997- drawings.pdf

1769-mas-1997- form 1.pdf

1769-mas-1997- form 26.pdf

1769-mas-1997- form 3.pdf

1769-mas-1997- form 4.pdf


Patent Number 204497
Indian Patent Application Number 1769/MAS/1997
PG Journal Number 26/2007
Publication Date 29-Jun-2007
Grant Date 22-Feb-2007
Date of Filing 07-Aug-1997
Name of Patentee USTER TECHNOLOGIES AG
Applicant Address WILSTRASSE 11, CH-8610 USTER, SWITZERLAND.,
Inventors:
# Inventor's Name Inventor's Address
1 ROLF HENSEL, SEEFEDSTRASSE 112,CH08008 ZURICH
2 WAMPFLER, Dr., IMBISBUHLSTRASSE 156,CH-8049 ZURICH
3 RAYNOR, GLATTLISTRASSE 6,CH-8048 ZURICH
4 SEITZ, Dr.,. KUSENSTRASSE 21,CH-8700 KUSNACHT
PCT International Classification Number G0IN21/89
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2030/96 1996-08-20 Switzerland