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In situ health monitoring of piezoelectric sensorsAn in situ health monitoring apparatus may include an exciter circuit that applies a pulse to a piezoelectric transducer and a data processing system that determines the piezoelectric transducer's dynamic response to the first pulse. The dynamic response can be used to evaluate the operating range, health, and as-mounted resonance frequency of the transducer, as well as the strength of a coupling between the transducer and a structure and the health of the structure.
Document ID
20130013492
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Jensen, Scott L.
Drouant, George J.
Date Acquired
August 27, 2013
Publication Date
March 19, 2013
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
Patent Application Number: US-Patent-Appl-SN-12/566,111
Patent Number: US-Patent-8,401,820
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,401,820
Patent Application
US-Patent-Appl-SN-12/566,111

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