Novel demodulation method for eliminating Rayleigh scattering in Raman distributed temperature sensors using anti-Stokes light only

Z. L. Wang; J. Chang; S. S. Zhang; G. P. Lv; B. N. Sun; S. Jiang; S. Luo; X. H. Liu; Y. N. Liu; W. J. Wang; Z. Liu; X. Z. Liu

doi:10.1117/12.2031358

15 October 2013 Novel demodulation method for eliminating Rayleigh scattering in Raman distributed temperature sensors using anti-Stokes light only

Z. L. Wang, J. Chang, S. S. Zhang, G. P. Lv, B. N. Sun, S. Jiang, S. Luo, X. H. Liu, Y. N. Liu, W. J. Wang, Z. Liu, X. Z. Liu

Author Affiliations +

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892413 (2013) https://doi.org/10.1117/12.2031358
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

A novel temperature demodulation method which eliminates the impact of Rayleigh scattering on Raman distributed temperature sensors (RDTS) using anti-Stokes light only is presented. This method utilizes two sections of reference fiber which are placed into temperature control chambers with different temperatures, such that the impact caused by the variation of laser’ power and the Rayleigh scattering is eliminated by the two reference temperatures. In the experiment, the temperature error caused by the Rayleigh scattering was decreased by 0.6℃ and 1.7℃ at 30℃ and 50℃compared with conventional method respectively.

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Z. L. Wang, J. Chang, S. S. Zhang, G. P. Lv, B. N. Sun, S. Jiang, S. Luo, X. H. Liu, Y. N. Liu, W. J. Wang, Z. Liu, and X. Z. Liu "Novel demodulation method for eliminating Rayleigh scattering in Raman distributed temperature sensors using anti-Stokes light only", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892413 (15 October 2013); https://doi.org/10.1117/12.2031358

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