SU1293487A1 - Light guide angular position converter - Google Patents

Abstract

This invention relates to a measurement technique. The aim of the invention is to improve the control accuracy by increasing the output information signal. The device contains a source of radiation 1, optical fibers 3, 4, a group of 9 of π optical fibers installed in such a way that the input end of the first one is optically coupled to the output end of the first light guide, and at the suitable end of the last one - with the input end of the second fiber. L is the second group 10 of p-1 fibers installed so that their input ends are optically coupled to the output ends of the first n-1 fibers of the first 9 groups, and the output ends of the first ends of the first 9 groups, the third group of n optical fibers, installed on opposite sides so that the input end of the first of them is optically coupled to the output end of the third fiber, and the output end of the last is with the input end of the fourth fiber, the fourth group of n-1 fibers installed so that their input ends are optically conjugated s with output ends of the first p-1 optical fibers of the third group, and output ends with the input ends of optical fibers of the third group, photodetectors 13 optically coupled to the output ends of the second 4 and fourth optical fibers, respectively, and the input ends of the optical fibers are optically coupled to the radiation source 1 . 4 il. u (L; o: 4 ;: 00 s Fig. g

Description

The invention relates to a measurement technique and can be used as a sensor for measuring object rotation angles.

The purpose of the invention is to increase the control accuracy by increasing the output information signal due to the use of two groups of n optical fibers made of V-shaped and their conjugation with the help of optical fibers with a source and receiver of radiation.

FIG. 1 is a functional transform circuit; in fig. 2 is a view A of FIG. one; in FIG. 3, section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one.

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The beams of the rays of the radiation source 1 sequentially pass, respectively, the first light guide 3, the first group 9 of the n and the second group 10 of the n-1 fibers, the second light guide 4 and fall on the first photodetector 13, at the same time, the beams of the radiation source 1 t the third light guide 5, the third group 11 of p and the fourth group of 12 of p-} light. The device contains a radiation source 1, a housing 2, 20 channels located in it, a fourth light guide 6 and the first 3, the second 4, the third 5 and the fourth photodetector 14. The second 6 optical fibers, the second housing 7,

When the monitored object is rotated at a certain angle, the distances between the optically coupled input and output ends of all the optical fibers change, while the light flux on one photodetector (for example, 13) increases and the other (14) decreases.

made with the possibility of rotation around the axis 8, perpendicular to the axis of the optical fibers 3-6, group 9 of n optical fibers, made U shaped and installed in the second Kopijyce 7 so that the input end of the first one is optically coupled to the output end of the first 3 the optical fiber, and the output end of the last one - with the input end of the second 4 light guide, the second group of 10 of n-1 fibers, made V-shaped and installed in the first building 2 so that their input ends are optically coupled to the output ends of the first 1 light guides of the first 9 groups, and output t Rtsy - with the input end of the first optical waveguides 9

group, the third group 11 of the n light, of a high degree, increase the accuracy

water, made V-shaped and installed in the BTqpoM housing 7 on opposite sides of the axis 8 of its rotation relative to the first 9 group of light emitters so that the input end of the first one is optically coupled to the output end of the third 5 light guide, and the output end of the last of them - with the fourth end of the fourth fiber 6, the fourth 12 group of P71 fibers, made V-shaped and installed so that their input ends are optically matched with the output ends of the first n-1 fibers of the third 11 group, and the output ends - with the input the ends of the light s 11 of the third group, the first and second photodetectors 13 and 14 are optically conjugated with the output torkontrol.

Claims (1)

Invention Formula 45 A light-guiding angular position transducer containing a successively installed radiation source, a building, a light guide housed therein, a second housing, installed 50 light can be rotated around an axis, perpendicular to the axis, light-water, a photodetector and a second light guide, characterized in that, in order to increase the accuracy of the contact  roll, it is equipped with a third light guide placed in the first housing so that its input end is optically coupled to a radiation source, a group of n light guides made 15 respectively, the second 4 and fourth 6 fibers, and the input ends of the first 3 and third 5 fibers are optically coupled to a source of 1 5 radiation. The second body 7 is fastened to the object to be monitored 1 (not shown). The device works as follows. The beams of the rays of the radiation source 1 sequentially pass through the first light guide 3, the first group 9 of the n and the second group 10 of the n-1 fibers, the second light guide 4 and fall on the first photodetector 13, at the same time, the beams of the radiation source 1 passes the third fiber 5, the third group 11 of p and the fourth group of 12 of p-} light 20 Dov, a quarter of a light guide 6, and a second photo-receiver 14. Dov, a quarter of an optical fiber 6, and the fall- “second photodetector 14. When the monitored object is rotated at a certain angle, the distances between the optically coupled input and output ends of all the optical fibers change, while the light flux on one photodetector (for example, 13) increases and the other (14) decreases. If, for an optically conjugated pair, the transmission coefficient Q, then for the considered converter, the transfer factor 2Q is doubled due to the use of two photoreceivers 13 and 14, optically conjugated with the corresponding optical fibers. Thus, the use of V-shaped light guides allows for sign control. Invention Formula 45 A light guide angular position transducer containing a successively installed radiation source, a building, a light guide housed therein, a second body mounted rotatably around an axis perpendicular to the axis of the light guide, a photodetector and a second light guide, characterized in that 5 roll, it is provided with a third light guide placed in the first housing so that its input end is optically coupled to a radiation source, a group of n light guides made V-shaped and installed in the second case so that the input end of the first one is optically conjugated with the output end of the first light guide, the output end of the last one is with the input end of the second light guide installed in the first case by the second group of n-1 optical fibers made V-shaped and installed in the first case so that their input ends are optically coupled with the output ends of the first n-1 fibers of the first group, and the output ends - with the input ends of the first optical fibers, the second photodetector NIKOM, the fourth light guide mounted in the first case so that its output end is optically fO 15 conjugated with a photodetector, a third group of fibers and V-shaped and installed in the second body on opposite sides of its axis of rotation relative to the first group of light gadgets so that the input end of the first one is optically conjugated with the output end of the third fiber, the output the end of the last of them is with the input torch of the fourth fiber, the fourth group of n-1 fibers, made of V-shaped and installed so that their input ends of the optical TSI are conjugated with the output ends of the first n-1 fibers third year uppy and exit ends - with the input ends of the fibers of the third group. FIG. 2 b b ig. 3 one 11 8 3 Compiled by A. Zabolotsky Editor M. Tovtin Tehred L. Serdyukova Corrector I. Erdeyi Order 370/41 Circulation 678 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4