Experimental Research on Influence of Temperature on PZT-Based Health Monitoring for Smart Aggregates

Abstract:

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Since piezoelectric materials exhibit strong temperature dependency. The change of temperature results in marked variation of the PZT transducer’s electric impedance signals, which may lead to misjudgment of the structural health condition. A experiment was implemented on smart aggregates with embedded PZT transducers under 35°C, 45°C and 55°C three working conditions, and found that the temperature had significant influence on the electric admittance signals of embedded PZT transducers. The peak magnitudes of the admittance curves changed and the curves shifted leftward. Then a temperature compensation technique was used to minimize the temperature effects.

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Edited by:

Lijuan Li

Pages:

2647-2652

DOI:

10.4028/www.scientific.net/AMR.163-167.2647

Citation:

J. Yu and H. P. Zhu, "Experimental Research on Influence of Temperature on PZT-Based Health Monitoring for Smart Aggregates", Advanced Materials Research, Vols. 163-167, pp. 2647-2652, 2011

Online since:

December 2010

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Price:

$35.00

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