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Proceedings Paper

Multiplexing of double cladding fiber sensors for bending sensor
Author(s): Libo Wu; Fufei Pang; Zhenyi Chen; Tingyun Wang
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Paper Abstract

We propose a multiplexing bending sensor system based on a special double cladding fiber (DCF). Based on the filter characteristic of the DCF transmission spectrum and the narrow band of distributed feedback laser pulse, the intensity changes can indicate the variation of measurand. A sensing scheme with four sensor heads in parallel is investigated in experiment. The variation of sensors output was directly detected and the four channel sensing signals were separated by a certain optical path difference of the sensor heads. The experiment results show that the intensity of the sensing signals decreases monotonously with increasing the bending curvature radius. And we can get good performance between 0.0-1.8m-1 of the curvature radius.

Paper Details

Date Published: 30 November 2012
PDF: 6 pages
Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 85611D (30 November 2012); doi: 10.1117/12.999935
Show Author Affiliations
Libo Wu, Shanghai Univ. (China)
Fufei Pang, Shanghai Univ. (China)
Zhenyi Chen, Shanghai Univ. (China)
Tingyun Wang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 8561:
Advanced Sensor Systems and Applications V
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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