System and method for monitoring piezoelectric material...

Details System and method for monitoring piezoelectric material... System and method for monitoring piezoelectric material...

2007-08-28

2007-08-28

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S319000

Reexamination Certificate

active

10943655

ABSTRACT:
A system and method are provided for monitoring performance capacity of a piezoelectric material that may form part of an actuator or sensor device. A switch is used to selectively electrically couple an inductor to the piezoelectric material to form an inductor-capacitor circuit. Resonance is induced in the inductor-capacitor circuit when the switch is operated to create the circuit. The resonance of the inductor-capacitor circuit is monitored with the frequency of the resonance being indicative of performance capacity of the device's piezoelectric material.

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U.S. Appl. No. 10/839,445, Woodard et al.

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