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Proceedings Paper

Acoustic emission source linear localization based on an ultra-short FBGs sensing system
Author(s): Zhongwei Jin; Mingshun Jiang; Qingmei Sui; Faye Zhang; Lei Jia
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Paper Abstract

An acoustic emission (AE) linear location system is proposed, which employs fiber Bragg gratings (FBGs) as AE sensors. It is demonstrated that the FBG wavelength can be modulated as static case when the grating length is much shorter than the AE wavelength. In addition, an improved AE location method based on Gabor wavelet transform (WT) and threshold analysis is represented. The method is testified through AE linear location experiments based on a tunable narrow-band laser interrogation system using ultra-short FBG sensors as AE sensors. Results of the experiments show that 86% of the linear location errors are less than 10mm.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89241F (15 October 2013); doi: 10.1117/12.2033315
Show Author Affiliations
Zhongwei Jin, Shandong Univ. (China)
Mingshun Jiang, Shandong Univ. (China)
Qingmei Sui, Shandong Univ. (China)
Faye Zhang, Shandong Univ. (China)
Lei Jia, Shandong Univ. (China)

Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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