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Proceedings Paper

An optical fiber F-P acoustic emission sensor system for the detection of steel crack initiation
Author(s): Xinglin Tong; Tao Ji; Wanting Wei; Changshan Wen; Xiaolong Zhu; Zhuoyan Leng
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Paper Abstract

In this paper, an optical fiber Fabry-Perot(F-P) acoustic emission(AE) sensor system for the detection of steel crack initiation has been investigated. The F-P sensors were fabricated by using quartz diaphragm, glass tube and fiber optic. And the signal processing circuit was designed by using an intensity demodulation method. The test of steel crack initiation was simulated by using a pencil lead break experiment. The results indicate that the F-P sensing system can detect weak AE signals at the frequency between 20 kHz and 1MHz, which could be used to on-line monitor of the steel structure health.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AG (7 November 2012); doi: 10.1117/12.968199
Show Author Affiliations
Xinglin Tong, Wuhan Univ. of Technology (China)
Tao Ji, Wuhan Univ. of Technology (China)
Wanting Wei, Zhejiang Univ. (China)
Changshan Wen, Wuhan Univ. of Technology (China)
Xiaolong Zhu, Wuhan Univ. of Technology (China)
Zhuoyan Leng, Wuhan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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