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Proceedings Paper

A wireless approach for acoustic emission sensing
Author(s): Zhibo Zhang; Siping Zhong; Deqi Zhong; Wenbin Huang
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Paper Abstract

As an effective non-destructive testing method, acoustic emission detection technology has been widely used in structural health monitoring (SHM). This paper proposes a wireless monitoring system based on acoustic emission technology. A wireless communication system based on amplitude modulation of acoustic emission signals is designed. Envelope detection is adopted at the receiving end to retrieve the original acoustic emission signal. Compared with the conventional coherent demodulation method, the propose approach avoids the necessity of coherent carrier at the receiver node, which reduces the complexity of the system. The performance of the prototype was verified by a pitch-catch experiment using the piezoelectric transducers, demonstrating its capability for monitoring the acoustic emission signal and potential for the structural health monitoring applications.

Paper Details

Date Published: 13 November 2019
PDF: 6 pages
Proc. SPIE 11343, Ninth International Symposium on Precision Mechanical Measurements, 1134318 (13 November 2019); doi: 10.1117/12.2548697
Show Author Affiliations
Zhibo Zhang, Inner Mongolia Univ. of Science and Technology (China)
Chongqing Univ. (China)
Siping Zhong, Chongqing Univ. (China)
Deqi Zhong, Chongqing Univ. (China)
Wenbin Huang, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 11343:
Ninth International Symposium on Precision Mechanical Measurements
Liandong Yu, Editor(s)

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