The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2007
Filed:
Sep. 08, 2004
Robert W. Moses, Seaford, VA (US);
Christopher L. Fox, Legal Representative, Yorktown, VA (US);
Melanie L. Fox, Legal Representative, Hayes, VA (US);
Richard L. Chattin, Newport News, VA (US);
Qamar A. Shams, Yorktown, VA (US);
Robert W. Moses, Seaford, VA (US);
Christopher L. Fox, legal representative, Yorktown, VA (US);
Melanie L. Fox, legal representative, Hayes, VA (US);
Richard L. Chattin, Newport News, VA (US);
Qamar A. Shams, Yorktown, VA (US);
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.