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Regular | Open Access

A Method for Eliminating the Impact of Microwave Sweeper Power Fluctuation in BOTDA System

Shuo JIANG, Jun CHANG( ), Sasa ZHANG, Zongliang WANG, Sha LUO, Boning SUN, Xiaohui LIU, Yongning LIU, Junqiang TIAN, Chuanwu JIA
School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan, 250199, P. R. China
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Abstract

The impact of microwave sweeper power fluctuation in the BOTDA system has been theoretically analyzed and experimentally tested. And a novel method comparing real-time acquisition of probe wave power with a new algorithm to realize probe wave power normalization for eliminating this impact was proposed. The principle of the proposed method was described theoretically. And the contrast test between our new method and conventional one was carried out. The experiment results indicated that the temperature accuracy was effectively improved from ±5 ℃ to ±2 ℃.

Keywords

Distributed temperature sensormicrowave sweeper power fluctuationtemperature accuracy

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Photonic Sensors
Volume 4 Issue 1,
March 2014
Pages 86-91
DOI: 10.1007/s13320-013-0149-9

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JIANG S, CHANG J, ZHANG S, et al. A Method for Eliminating the Impact of Microwave Sweeper Power Fluctuation in BOTDA System. Photonic Sensors, 2014, 4(1): 86-91. https://doi.org/10.1007/s13320-013-0149-9

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Received: 25 October 2013
Revised: 01 December 2013
Published: 14 December 2013
© The Author(s) 2013.

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