Accuracy improvement of distributed optical fiber Raman temperature sensor system based on dynamic calibration

Zhong-Xie Jin; Hai-Jun Cui; Feng Ning

doi:10.1117/12.924045

12 April 2012 Accuracy improvement of distributed optical fiber Raman temperature sensor system based on dynamic calibration

Zhong-Xie Jin, Hai-Jun Cui, Feng Ning

Author Affiliations +

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 840929 (2012) https://doi.org/10.1117/12.924045
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

Abstract

A distributed optical fiber Raman temperature sensor system was established, and a new temperature calibration method was presented. A Thermoelectric Controller (TEC) module was used as a dynamic multi-temperature reference to solve the nonlinear problems caused by temperature drift of Avalanche Photodetector (APD) gain and nonlinear response of Raman effect. The information of temperature fields along the fiber could be demodulated linearly regardless the environmental temperature variations. Compared with the traditional calibration methods, the proposed sensor system was more accurate and stable, and was suitable for engineering applications. The expermental results show that the measurement error of the system was less than 1°.

Citation Download Citation

Zhong-Xie Jin, Hai-Jun Cui, and Feng Ning "Accuracy improvement of distributed optical fiber Raman temperature sensor system based on dynamic calibration", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 840929 (12 April 2012); https://doi.org/10.1117/12.924045

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