Particle sensor for stream bed
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United States of America Patent
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-
May 4, 1993
Grant Date -
N/A
app pub date -
Mar 25, 1991
filing date -
Mar 25, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sensor for detecting particle flux in a stream has a hollow armored housing enclosing a vibration transducer coupled to the housing for detecting particles impinging on the housing. Also enclosed in the housing is a data logging and control unit for recording particle flux for later retrieval. An ultrasonic acoustic beacon for signalling the condition of the sensor and for indicating the position of the sensor in the event of displacement is also mounted on the sensor. Additionally a brightly colored long buoyant pennant is attached for enabling visual relocation of a displaced sensor.
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