发明名称 |
In situ health monitoring of piezoelectric sensors |
摘要 |
An 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. |
申请公布号 |
US8401820(B2) |
申请公布日期 |
2013.03.19 |
申请号 |
US20090566111 |
申请日期 |
2009.09.24 |
申请人 |
JENSEN SCOTT L.;DROUANT GEORGE J.;UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
JENSEN SCOTT L.;DROUANT GEORGE J. |
分类号 |
G01H11/08;G06F15/00 |
主分类号 |
G01H11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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