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Proceedings Paper

Accuracy improvement of distributed optical fiber Raman temperature sensor system based on dynamic calibration
Author(s): Zhong-Xie Jin; Hai-Jun Cui; Feng Ning
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Paper 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°.

Paper Details

Date Published: 13 April 2012
PDF: 7 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 840929 (13 April 2012); doi: 10.1117/12.924045
Show Author Affiliations
Zhong-Xie Jin, Chongqing Univ. (China)
Hai-Jun Cui, Chongqing Univ. (China)
Feng Ning, Chongqing Univ. (China)


Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

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