Flow transducer and method
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United States of America Patent
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Aug 28, 2007
Grant Date -
Jan 12, 2006
app pub date -
Apr 22, 2005
filing date -
Oct 29, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A transducer is disclosed for sensing flow of a fluid. The transducer includes means for applying a heat pulse to the fluid and at least one temperature sensor. The temperature sensor is adapted to detect a decaying response to the heat pulse to provide an indication of the flow. The decaying response may be detected by comparing measured voltages at a set moment in time or by comparing measured times at a set voltage threshold. A method for sensing flow of a fluid is also disclosed.
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