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Proceedings Paper

Distributed fiber optic temperature sensor based on Raman scattering of data fiber
Author(s): Deming Liu; Yibing Tang; Dunlu Yu; Changjian Ke; Dexiu Huang
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Paper Abstract

In this paper, the temperature performance of Raman scattering spectrum in a data fiber was studied in theory and in experiment. The optimum system parameters were decided and a distributed fiber-optic temperature sensor (DFTS) system was developed. Theoretical and experimental analyses showed that the temperature response function of the DFTS system is much different from the actual one. A novel signal process method was put forward to improve the system precision. The results of the measurements show an apparent improvement in the performances of DFTS system. The temperature accuracy and the distance resolution reached to +/- 1 and +/- 1 m, respectively. The system is stable and adequate for commercial usage, such as the power industry, the underground tunnel, the subway, the pipe laying, and also for the mission applications, such as the warship and the airplane.

Paper Details

Date Published: 30 March 2000
PDF: 7 pages
Proc. SPIE 4020, Thermosense XXII, (30 March 2000); doi: 10.1117/12.381555
Show Author Affiliations
Deming Liu, Huazhong Univ. of Science and Technology (China)
Yibing Tang, Huazhong Univ. of Science and Technology (China)
Dunlu Yu, Huazhong Univ. of Science and Technology (China)
Changjian Ke, Huazhong Univ. of Science and Technology (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4020:
Thermosense XXII
Ralph B. Dinwiddie; Dennis H. LeMieux, Editor(s)

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