MULTICHANNEL PRESSURE CONVERTER Russian patent published in 2019 - IPC G01L9/04 G01L15/00 G12B7/00 G01D3/28 G01K13/00 

Abstract RU 2696945 C1

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and industrial electronics and serves to measure pressure on surface of articles by drain method. Disclosed multichannel pressure converter comprises unit of 32 (possibly another number) of silicon pressure sensors, a unit for passive compensation of temperature error and initial unbalance of pressure sensors, a multiplexer of signals of measuring elements, multiplexer control unit from microcontroller, measuring amplifier, analogue-to-digital converter, microcontroller, thermal stabilizer of converter, including temperature sensor, controlled heating elements, uniformly distributed over entire area of heat-conducting frame, PI-temperature controller, supply voltage generator of converter elements.

EFFECT: high accuracy of measuring pressure, reduced dimensions of the converter, high number of measuring channels of the converter, placement of pressure transducers in small-size models of aircraft and their elements tested in aerodynamic installations.

3 cl, 1 dwg

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RU 2 696 945 C1

Authors

Biryukov Georgij Viktorovich

Blokin-Mechtalin Yurij Konstantinovich

Kolesnikov Vladimir Alekseevich

Nazarov Aleksej Evgenevich

Dates

2019-08-07Published

2018-11-20Filed