Fiber grating pressure sensor with enhanced sensitivity

Lihui Liu; Qida Zhao; Weigang Zhang; Hao Zhang; Long Jin; Luming Zhao; Yu Yan; Shiyu Gao; Xiaoyi Dong

doi:10.1117/12.570762

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10 January 2005 Fiber grating pressure sensor with enhanced sensitivity

Lihui Liu; Qida Zhao; Weigang Zhang; Hao Zhang; Long Jin; Luming Zhao; Yu Yan; Shiyu Gao; Xiaoyi Dong

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Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.570762
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

A novel pressure sensor with FBG partly packaged by a metal tube is presented. The thermal-strain cross effect can be avoided. Moreover, its pressure sensitivity is -2.44×10^-3/MPa with the range from 0 to 0.44 MPa, which is 1200 times as that of a bare fiber grating. The linearity of this sensor reaches 0.9986.

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Lihui Liu, Qida Zhao, Weigang Zhang, Hao Zhang, Long Jin, Luming Zhao, Yu Yan, Shiyu Gao, and Xiaoyi Dong "Fiber grating pressure sensor with enhanced sensitivity", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.570762

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