PIPELINE SHUTOFF VALVE TIGHTNESS CONTROL DEVICE Russian patent published in 2014 - IPC G01M3/24

Abstract RU 2534428 C1

FIELD: machine building.

SUBSTANCE: proposed device comprises acoustic transducer (1) with signal amplifier (2). Controlled bandpass filter (3) is connected to signal amplifier (2), AC/DC converter (4) being arranged at filter output. Said AC/DC converter (4) is connected with signal amplitude memory consisting of cells (5-7) and switch (8). Said signal amplitude memory unit is connected with signal amplitude indicator (9) to indicate the tightness of shutoff valves.

EFFECT: control of tightness at operating pipeline.

2 cl, 1 dwg

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RU 2 534 428 C1

Authors

Sergeev Sergej Sergeevich

Dates

2014-11-27—Published

2013-03-26—Filed