17 October 2012 Acoustic emission detection using a fiber laser array
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842134 (2012) https://doi.org/10.1117/12.974908
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wentao Zhang, Wentao Zhang, Wenzhu Huang, Wenzhu Huang, Huaixiang Ma, Huaixiang Ma, Fang Li, Fang Li, "Acoustic emission detection using a fiber laser array", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842134 (17 October 2012); doi: 10.1117/12.974908; https://doi.org/10.1117/12.974908
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