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Proceedings Paper

Acoustic emission detection using a fiber laser array
Author(s): Wentao Zhang; Wenzhu Huang; Huaixiang Ma; Fang Li
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Paper Abstract

In this paper we repot a novel acoustic emission detection method using a fiber laser array. The ultra-narrow line width of the DFB fiber laser will result in a low equivalent noise level when using a fiber optic interferometric demodulation. A minimum detectable strain of 10-12 is achieved in the experiment. Three fiber lasers are used in the array and the acoustic emission is detected. The result is compared with that of a piezoelectric acoustic emission sensor.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842134 (17 October 2012); doi: 10.1117/12.974908
Show Author Affiliations
Wentao Zhang, Institute of Semiconductors (China)
Wenzhu Huang, Institute of Semiconductors (China)
Shijiazhuang Tiedao Univ. (China)
Huaixiang Ma, Shijiazhuang Tiedao Univ. (China)
Fang Li, Institute of Semiconductors (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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