Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

2. ENGINEERING AND TECHNOLOGY

Publication Details

Microwave and Optical Technology Letters, Vol. 52, No. 10, October 2010, pp. 2231-2235 Available from the publisher here http://eu.wiley.com/WileyCDA/WileyTitle/productCd-MOP.html

Abstract

An all-fiber displacement sensor with a simple configuration is proposed and investigated theoretically and experimentally. The proposed fiber displacement sensor consists of a half-loop structure of high-bend loss singlemode fiber-1060XP. A ratiometric power measurement system for interrogating the proposed sensor is also presented. By measuring the change in ratio of bend loss in the ratiometric measurement system, a change in displacement can be measured assuming the ratiometric system is calibrated. The proposed macrobending fiber based displacement sensor achieves a competitive resolution of circa 0.33 μm and also benefits from simplicity compared with the conventional fiber Bragg grating based displacement sensor. The bend loss fiber based displacement sensing system is sensitive to temperature, but the ratio response has a linear variation with temperature, which can be corrected by a suitable displacement correction process. Corresponding investigation on the temperature dependence of the macrobending fiber based displacement sensing system is presented in this paper.

DOI

https://doi.org/10.1002/mop.25446

Funder

Irish Research Council for Science, Engineering and Technology (IRCSET)

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