JET-PHOTOCOMPENSATION DERIVATIVE ACTION AND DIFFERENTIATION UNIT Russian patent published in 2022 - IPC G05B11/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electropneumatic automatic controllers. Jet-photocompensation derivative action and differentiation unit consists of a photovoltaic galvanometer, the movable part whereof is made in the form of spreaders whereby feedback current passes, an optical part recording the angle of rotation of the mirror rigidly fixed on the spreaders, a permanent magnet, an electrical bridge circuit with the differentially connected dual photoresistor, characterised by the movable part of the galvanometer including a plate rigidly fixed on the spreaders with nozzles located perpendicular to said plate, wherein one of the nozzles is linked with an input pressure source, a variable resistance for changing the time constant, a capacity of a constant volume, and a metering precision repeater, and the second nozzle is linked with either the same input pressure source for implementing the derivative action law or a source of another pressure for implementing the differentiation law.

EFFECT: implementation of the effect of force action of a jet, linearity of the static characteristic, and acceptable control process dynamics.

1 cl, 1 dwg