28 September 2015 0.1-nano-strain resolution fiber optic sensor for quasi-static strain measurement with 1 kS/s sampling rate
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96343T (2015) https://doi.org/10.1117/12.2194700
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
We present a newly developed high performance fiber optics sensor for quasi-static strain measurement. The sensor consists of a piece of π-phase shifted FBG for static strain sensing, and fiber Fabry-Perot interferometer for reference, interrogated by an improved sideband interrogation method with real-time feedback loops. Strain resolution of 0.12 nano-strain was achieved with sampling rate up to 1 kS/s in laboratory experiments. Compared with previous sensor systems, the proposed method shows great improvement in the sensing rate as well as the resolution.
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Jiageng Chen, Jiageng Chen, Qingwen Liu, Qingwen Liu, Xinyu Fan, Xinyu Fan, Lin Ma, Lin Ma, Jiangbing Du, Jiangbing Du, Tomochika Tokunaga, Tomochika Tokunaga, Zuyuan He, Zuyuan He, } "0.1-nano-strain resolution fiber optic sensor for quasi-static strain measurement with 1 kS/s sampling rate", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343T (28 September 2015); doi: 10.1117/12.2194700; https://doi.org/10.1117/12.2194700
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