Fluid flow rate sensor and method of operation
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United States of America Patent
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Feb 19, 2008
Grant Date -
Apr 13, 2006
app pub date -
Oct 13, 2004
filing date -
Oct 13, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thermo-anemometer-type fluid flow rate sensor design and a method for its operation that overcome the response time limitations of prior known fluid flow rate sensors is disclosed. The fluid flow rate sensor includes a probe having a detection module adapted to change condition in response to the presence of the flow of the fluid, a control module that is electrically connected to the probe that monitors the condition of the detection module over time (e.g., a temperature), determines a rate of change of that condition over time, and generates an output that is indicative of the rate of flow of the fluid, and a I/O module connected to the control module to provide a means for communicating the output of the control module to another device or a user.
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