Vented high-temperature piezoelectric-based field device
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United States of America Patent
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Jan 26, 2010
Grant Date -
Jan 22, 2009
app pub date -
Mar 5, 2008
filing date -
Mar 6, 2007
priority date (Note) -
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Abstract
A process fluid sensor for sensing a characteristic of a process fluid is provided. The process fluid sensor includes a metallic sensor body that defines a chamber therein. A piezoelectric crystal element is disposed proximate the chamber and is configured to generate an electrical signal in response to a mechanical input. The piezoelectric crystal element is mechanically coupleable to the process fluid, but is sealed within the sensor body with the exception of a gaseous pathway. A vortex flowmeter utilizing the process fluid sensor is also provided.
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