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Proceedings Paper

Experimental study of fiber grating curvature sensor
Author(s): Xinyong Dong; Hongyun Meng; Bai'ou Guan; Chunliu Zhao; Guiyun Kai; Xiaoyi Dong
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Paper Abstract

A curvature sensor based on fiber Bragg grating (FBG) is demonstrated in this paper. Two FBGs are surface-bonded on opposite sides of a flexible beam to track the local curvature variation. The bending-induced strain causes opposite changes in their Bragg wavelengths. As a result, temperature-independent curvature measurement with sensitivity of 3.21nm/mMIN1 is achieved by monitoring spacing between the two Bragg wavelengths. The experimental results agree well with the theoretical analysis.

Paper Details

Date Published: 16 October 2001
PDF: 4 pages
Proc. SPIE 4603, Fiber Optics and Optoelectronics for Network Applications, (16 October 2001); doi: 10.1117/12.444571
Show Author Affiliations
Xinyong Dong, Nankai Univ. (China)
Hongyun Meng, Nankai Univ. (China)
Bai'ou Guan, Nankai Univ. (China)
Chunliu Zhao, Nankai Univ. (China)
Guiyun Kai, Nankai Univ. (China)
Xiaoyi Dong, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 4603:
Fiber Optics and Optoelectronics for Network Applications
Jian Liu; Zhigong Wang, Editor(s)

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