SU587474A1 - Functional photopotentiometer - Google Patents

Description

I

The invention relates to computing and can be used in various industries as functional transducers of angular and linear movements.

Functional photopotentiometers are known that contain a light source that are optically coupled to a photolayer placed on an insulating substrate.

Their disadvantage is the low accuracy and impossibility of using it for converting angular displacements.

The closest in technical essence to the invention is a functional photopotentiometer comprising a light source, a diaphragm, and an annular insulating substrate, on a cylindrical surface of which a photo layer is deposited between the collector and the resistive element, the light source being optically coupled through the photo layer diaphragm.

The disadvantages of this photopotentiometer are the change in the transfer coefficient only in dependence on the type of arrangement of the resistive layer and the possibility of using the photopotentiometer only as a pre-selection of angular displacements.

The aim of the invention is to enhance the functionality of the photopotentiometer by performing a functional transformation of two variables — linear and angular displacements.

For this reason, the diaphragm is made in

as a movable transparent cylinder equipped with a removable mask with a slit functional slot and located coaxially between the light source and the annular insulating substrate.

FIG. 1 pictured photopotentiometer, general view; in fig. 2 - section -A figure 1.

The photopotentiometer contains a light source 1, (фТ.2 ;, a diaphragm made in the form of a movable transparent cylinder 2, equipped with a removable mask 3 with a slit functional passage 4, an annular insulating submersible 5, made transparent, with a photo layer 6 between the resistive element 7 in contact with it and a collector 8, a light probe 9 (the conclusions of the photopotentiometer are not shown in the figures.) The photopotentiometer works as follows.

The light rays from the light source through the transparent cylinder 2 and the functional notch 4. masks 3 in the form of a joint probe 9 illuminate the photofloor 6. The illumination of the photoflo 6 creates a conductive bridge between the resistive element 7 and the collector 8. If the movable transparent cylinder 2 with the mask 3 moves Along its axis, the light probe 9 will move along the photofluor B according to the law of making the slit functional slot 4, and according to the same law the transmission coefficient of the photopotentiometer will change. If the movable transparent cylinder 2 rotates around its axis, then the light probe will also move along the photolayer, while the yd of the change in transmission coefficient will depend on the values of the current resistance of the resistive element. This shows that the photopotentiometer can transform both linear and angular displacements, i.e. its functionality is enhanced.

Claims (2)

1. Authors certificate of the USSR 118550, cl. H 01 I, 17/20, 1957. 2.Svechnikov S.V. Photodipolar networks, Kiev, Technique., 1965, p.209, fig. 119. )) tl 3 -  I 1. % l II Rig. J Aa ig, /