Piezoelectric transducers
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United States of America Patent
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Jan 17, 2006
Grant Date -
Jul 8, 2004
app pub date -
Sep 16, 2003
filing date -
Dec 13, 2002
priority date (Note) -
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Abstract
A system and method of operation for a piezoelectric transducer is described which utilizes a mesa structure interposed between a piezoelectric material element and a chamber diaphragm. The system can be used as a sensor where a net motion to the diaphragm causes a net charge equal to the sum of the charges on each piezoelectric diaphragm. Alternatively, the system can be used as an actuator wherein an applied voltage causes movement of the piezoelectric transducer and the chamber diaphragm.
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