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Proceedings Paper

Novel demodulation method for eliminating Rayleigh scattering in Raman distributed temperature sensors using anti-Stokes light only
Author(s): 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
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Paper 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.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892413 (15 October 2013); doi: 10.1117/12.2031358
Show Author Affiliations
Z. L. Wang, Shandong Univ. (China)
J. Chang, Shandong Univ. (China)
S. S. Zhang, Shandong Univ. (China)
G. P. Lv, Shandong Univ. (China)
B. N. Sun, Shandong Univ. (China)
S. Jiang, Shandong Univ. (China)
S. Luo, Shandong Univ. (China)
X. H. Liu, Shandong Univ. (China)
Y. N. Liu, Shandong Univ. (China)
W. J. Wang, Shandong Univ. (China)
Z. Liu, Shandong Univ. (China)
X. Z. Liu, Shandong Academy of Sciences (China)

Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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