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Proceedings Paper

Detection of micrometer crack by Brillouin-scattering-based distributed strain and temperature sensor
Author(s): Lufan Zou; Maria Q. Feng
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Paper Abstract

A Brillouin-scattering-based distributed strain and temperature sensor (DSTS) has been employed to detect cracks on ceramic by measuring the strain distributions along the surface of the ceramic for the first time. The existence of cracks and their locations are identified by measuring the strain distribution on a sensing fiber bonded on the ceramic surface. Due to innovated design and signal processing, the distributed Brillouin sensor developed for this study achieves a uniquely high resolution and accuracy. Experimental study on ceramic tile specimens demonstrated the efficacy of the distributed Brillouin fiber optic sensor in detecting and locating fine cracks.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 700419 (16 May 2008); doi: 10.1117/12.785694
Show Author Affiliations
Lufan Zou, OZ Optics Ltd. (Canada)
Maria Q. Feng, Univ. of California, Irvine (United States)


Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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