FIELD: electrical engineering. SUBSTANCE: device has pickup end piece, facility for transmission of vibrations from pickup end piece to transducer which detects vibrations arising in motion electrically and delivers output signal. Device may be provided with facility for filtering the output signal which is higher or lower than respective preset frequencies and for delivery of motion detection signal if output signal is within range of preset frequencies. EFFECT: more reliable detection of motion. 11 cl, 9 dwg
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Authors
Dates
1998-01-20—Published
1993-03-03—Filed