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Proceedings Paper

A real-time inclinometer based on an etched fiber Bragg grating connected to hollow-core fiber
Author(s): Qiang Zhang; Tao Zhu; Fengyang Yin; Kin Seng Chiang; Ming Deng
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Paper Abstract

We propose and experimentally demonstrate a low-cost, compact temperature-insensitive inclinometer, which is constructed by connecting a chemically etched fiber Bragg grating to a hollow-core fiber filled with tin. The optical power reflected from the grating is linearly proportional to the inclination angle of the grating and can provide a real-time measure of the inclination angle. Our experimental sensor can measure the inclination angle from 0° to 20° with an uncertainty of ± 0.35º and negligible temperature interference.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91579U (2 June 2014); doi: 10.1117/12.2059071
Show Author Affiliations
Qiang Zhang, Chongqing Univ. (China)
Tao Zhu, Chongqing Univ. (China)
Fengyang Yin, Chongqing Univ. (China)
Kin Seng Chiang, City Univ. of Hong Kong (Hong Kong, China)
Ming Deng, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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