JET-PNEUMATIC SYSTEM FOR CONTROLLING RATIO OF TWO PARAMETERS Russian patent published in 2024 - IPC G05B11/50 

FIELD: physics.

SUBSTANCE: jet-pneumatic system for controlling the ratio of two parameters includes a computational and a control part consisting of a pressure setter, throttle adders, a proportional-integral controller, which is a proportional controller, in the positive feedback of which there is an integral link, characterized by that the proportional controller consists of a sensitive element – a plate suspended on a gas support, an input differential jet circuit, reading element in the form of a “nozzle-flap” type unit, covered by two compensation nozzles located before and after the pneumatic membrane power amplifier with a gain of more than one, which forms regenerative feedback, and integral link consists of variable resistance, changing integration time constant, constant volume and accurate membrane repeater connected with zero point displacement nozzle, which is normally located to the plate. Principle of operation of the jet-pneumatic system for controlling the ratio of two parameters is based on the use of the effect of force action of the jet.

EFFECT: providing high accuracy due to linearity of the static characteristic and providing acceptable dynamics of the control process.

1 cl, 1 dwg