Sonic tank monitoring system
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United States of America Patent
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Mar 17, 1992
Grant Date -
N/A
app pub date -
Aug 6, 1990
filing date -
Aug 6, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The height of a liquid level from the bottom of a storage tank or the like is accurately determined by using a probe with dual isolated channels to measure the time for an acoustic signal to travel between fixed submerged points and from a transducer in one of the channels to the surface of the liquid. Elapsed time measurements are converted to liquid volume using predetermined velocity-temperature values to compensate for temperature variations in the tank.
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