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Regular | Open Access

Wavelength Dispersion Analysis on Fiber-Optic Raman Distributed Temperature Sensor System

Weijie WANG1, Jun CHANG1( ), Guangping LV1, Zongliang WANG1, Zhi LIU1, Sha LUO1, Shuo JIANG1, Xiangzhi LIU2, Xiaohui LIU1, Yongning LIU1
School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan, 250100, P. R. China
Institute of Automation, Shandong Academy of Sciences, Jinan 250014, China
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Abstract

The influence of the wavelength dispersion on the temperature accuracy of the Raman distributed temperature sensor system (RDTS) is analyzed in detail, and a simple correction algorithm is proposed to compensate the fiber position error caused by the wavelength dispersion. The principle of the proposed algorithm is described theoretically, and the correction on each point along the entire fiber is realized. Temperature simulation results validate that the temperature distortion is corrected and the temperature accuracy is effectively improved from ±5 ℃ to ±1 ℃.

Keywords

Distributed temperature sensorwavelength dispersioncorrection algorithm

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Photonic Sensors
Volume 3 Issue 3,
September 2013
Pages 256-261
DOI: 10.1007/s13320-013-0102-y

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WANG W, CHANG J, LV G, et al. Wavelength Dispersion Analysis on Fiber-Optic Raman Distributed Temperature Sensor System. Photonic Sensors, 2013, 3(3): 256-261. https://doi.org/10.1007/s13320-013-0102-y

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Received: 20 October 2012
Revised: 20 February 2013
Published: 07 April 2013
© The Author(s) 2013.

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