RESONANCE ACOUSTIC LEVEL METER

FIELD: physics. ^ SUBSTANCE: resonance acoustic level meter has a sounding pipe along the axis of which there is at least one diaphragm with a centre hole, an electroacoustic transducer and a microphone, fitted in the top part of the pipe. The level meter also has a phase-shift keyed signal generato...

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Bibliographische Detailangaben
Hauptverfasser: LEKOMTSEV VLADIMIR MITROFANOVICH, DENISOV DMITRIJ MIKHAJLOVICH
Format: Patent
Sprache:eng ; rus
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