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Energy efficient method for embedded in-situ structural health monitoring
Universite de Lyon
* To whom correspondence should be addressed. E-mail: mickael.lallart{at}insa-lyon.fr.
This article introduces the principles of an ultra low-cost scheme for in situ, embedded structural health monitoring. Based on the interactions of a Lamb wave with the structure, the proposed technique relies in comparing the time period where the sensed signature of the Lamb wave is greater than an user-defined threshold with a reference value. Compared to similar methods based on the monitoring of the structural state evolution, the proposed scheme is ultra low-cost, and therefore suitable for integrated systems that have a limited amount of available energy.
First published on August 10, 2009 |
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