Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2005-08-02
2005-08-02
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
06924584
ABSTRACT:
A system and method of operation is described which utilizes an array of piezoelectric actuators distributed over the surface of a diaphragm. In one embodiment, the piezoelectric actuator array is used to cause a net motion of the diaphragm equal to the sum of the motions of each individual sub-chamber diaphragm. The system can be used as a sensor where a common motion applied to the sub-chamber diaphragm causes a net charge equal to the sum of the charges on each piezoelectric diaphragm.
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Buhler Steven A.
Fitch John S.
Lean Meng H.
Littau Karl A.
Dougherty Thomas M.
McBain Nola Mae
Palo Alto Research Center Inc.
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