SU752060A1 - Pneumatic electric converter - Google Patents

Description

The invention relates to pneumoelectric agents and can be used in the automation of technological objects. Pneumoelectric transducers are known, the holders of a pneumomechanical unit, made using a snfon, and a mechano-electric unit containing a differential converter I. The closest to this invention is a pneumoelectric converter, a social generator of pneumatic pulses, and a package of pneumatic chambers with electrically connected between them are piezoceramic: mi membranes 2. However, the characteristic feature is low accuracy, due to the presence of an inkjet converting element. The aim of the invention is to increase the converter. This is achieved by t & there are two mutually inverse rotary valves installed in the device, the control inputs of which are connected to the outputs of the pneumatic pulse generator, the inputs to the input channel, and the inputs to the even and odd pneumatic chambers connected in parallel, respectively. The drawing shows a diagram of the pneumatic converter. The converter contains a pneumo-mechanical unit, including a pneumatic generator 1, direct 2 and inverted 3 valves, and a mechanical electro-electric unit 4, composed of piezher membrane membranes 5, corresponding 6 and odd 7 chambers. The converter works in the following way. The pto-air pneumatic signal F enters the input channels of the reciprocally inverted valves 2 and 3. Then using the pneumatic generator 1, the potential signal is converted into time-varying P and P phases

which are offset relative to each other by 180.

 The magnitude of the amplitude of the signals P a PQ is proportional to the value of the input signal P. Then the signals P and Pd

cooTBeitiTBeHHo comes in even in and odd 7 cameras. At the output terminals of the converter 4, the pressure voltage U. is formed by the pressure P and P.

Pyva-ceramic membranes 5 in the zone of elastic deformations provide lithium. the linear dependence of the magnitude of the stress on the gas pressure applied to them. Thus, the magnitude of the amplitude of the voltage and l. Is proportional to the magnitude of the potential signal Pgx. When converting discrete pneumatic signals to the Pgy device, a discrete pneumatic signal is applied, conditional I or conditional O. The converter converts conditional 1 into a series of electric pulses of constant amplitude, and conditional O is indicated by the absence of voltage

Uo, at the input terminals of the converter

Formula inventions

A pneumatic electric transducer containing a generator of pneumatic pulses and a package of pneumatic chambers with piezoceramic membranes electrically connected to each other, characterized in that, in order to expand the functional capabilities, two mutually inverted pneumatic valves are installed, the control inputs of which are connected to the output of the pneumatic impulses generator; with the input channel, and the outputs, respectively, with the inputs of even and odd pneumatic chambers connected in parallel but.

Sources of information taken into account during the examination

1. V. Eugenbrot, Transducers of the kind of signal energy in automatic control systems, Moscow, Energiya, 197О, .с. 66

2. US Patent No. 3519009, cl. 13781 .5, 1970; (prototype).

Claims (1)

A pneumatic-electric converter containing a generator of pneumatic pulses of ₅ pulses and a package of pneumatic chambers with piezoceramic membranes electrically connected to each other, characterized in that, in order to expand functional capabilities, two mutually inverse pneumatic valves are installed in it, the control inputs of which are connected to the output of the pneumatic generator pulses, inputs - with an input signal supply channel, 15 and outputs, respectively, with inputs of even and odd pneumatic chambers connected in parallel nno.