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Proceedings Paper

Acoustic emission detection based on distributed feedback fiber laser
Author(s): Tan Yang; Ying Song; Wen-tao Zhang; Fang Li
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Paper Abstract

Compared with Fiber Bragg grating (FBG), Distributed Feedback fiber laser (DFB-FL) sensors has the advantages of ultra-narrow line-width, high output power, and low noise level, which will result in a better performance in ultra-slight acoustic emission (AE) detection. In this paper, we demonstrate a DFB fiber laser acoustic sensor. The intensity response of DFB-FL to external acoustic waves has been investigated. The frequency response of the DFB fiber laser based AE sensor is measured in aluminum plate. The experiment results show that the intensity modulated DFB fiber laser acoustic sensor can accurately record the continuous acoustic emission signal and the pencil lead-broken acoustic emission waves.

Paper Details

Date Published: 19 October 2016
PDF: 6 pages
Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101552B (19 October 2016); doi: 10.1117/12.2246940
Show Author Affiliations
Tan Yang, Institute of Semiconductors (China)
Shijiazhuang Tiedao Univ. (China)
Ying Song, Shijiazhuang Tiedao Univ. (China)
Wen-tao Zhang, Institute of Semiconductors (China)
Fang Li, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 10155:
Optical Measurement Technology and Instrumentation
Sen Han; JiuBin Tan, Editor(s)

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