System and method for monitoring piezoelectric material performance
摘要
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.
申请公布号
US7262543(B2)
申请公布日期
2007.08.28
申请号
US20040943655
申请日期
2004.09.08
申请人
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
发明人
MOSES ROBERT W.;FOX, LEGAL REPRESENTATIVE CHRISTOPHER L.;FOX, LEGAL REPRESENTATIVE MELANIE L.;CHATTIN RICHARD L.;SHAMS QAMAR A.