Optical Curvature Sensor Based on Enhanced Backscattering in Single Mode Fibre
A fibre optic curvature sensor is proposed with the enhanced backscattering sensitive to the deflection of thin structures. A short piece of single mode fibre attached on 1mm thickness titanium substrate is polished with rough sand paper. The rough surface and micro-cracks near fibre core dramatically enhance the backscatter in the fibre. The sensor is experimentally researched with self-pulse reference intensity demodulation method. The minimum detectable curvature is as small as 3.0 × 10-4/m, which means the strain resolution is 0.1μϵ . The backscatter optical fibre curvature senor can be much more compact and convenient to use in smart structure.
First ; Corresponding
|EI Accession Number|
|ESI Classification Code|
|Document Type||Conference paper|
|Department||School of Innovation and Entrepreneurship|
1.College of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
|First Author Affilication||School of Innovation and Entrepreneurship|
|Corresponding Author Affilication||School of Innovation and Entrepreneurship; Department of Electrical and Electronic Engineering|
|First Author's First Affilication||School of Innovation and Entrepreneurship|
Yang，Yang,Song，Zhangqi,Zhu，Xiaotong,et al. Optical Curvature Sensor Based on Enhanced Backscattering in Single Mode Fibre[C],2020.
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