High-sensitive distributed transverse load sensing based on Brillouin dynamic gratings

Lei Teng; Peilin Tong; Taofei Jiang; Hongying Zhang; Zhiwei Lu; Liang Chen; Xiaoyi Bao; Yongkang Dong

doi:10.1117/12.2194317

28 September 2015 High-sensitive distributed transverse load sensing based on Brillouin dynamic gratings

Lei Teng, Peilin Tong, Taofei Jiang, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, Yongkang Dong

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346M (2015) https://doi.org/10.1117/12.2194317
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

We report on a high-sensitive distributed transverse load sensing based on Brillouin dynamic gratings (BDGs) for the first time to the best of our knowledge. The sensing mechanism is to measure the transverse-load induced birefringence through exciting and probing a BDG in an elliptical-core polarization-maintaining fiber. A distributed measurement of transverse load is experimentally demonstrated with a 20-cm spatial resolution, and the measurement accuracy is as high as 4.8x10^-4N/mm, which improves by three orders of magnitude compared with the prior techniques.

Citation Download Citation

Lei Teng, Peilin Tong, Taofei Jiang, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, and Yongkang Dong "High-sensitive distributed transverse load sensing based on Brillouin dynamic gratings", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346M (28 September 2015); https://doi.org/10.1117/12.2194317

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