Study on the distributed optical fiber sensing technology for pipeline leakage protection

Yan Zhou; Shi-jiu Jin; Zhi-gang Qu

doi:10.1117/12.694438

10 June 2006 Study on the distributed optical fiber sensing technology for pipeline leakage protection

Yan Zhou, Shi-jiu Jin, Zhi-gang Qu

Proceedings Volume 6344, Advanced Laser Technologies 2005; 634435 (2006) https://doi.org/10.1117/12.694438
Event: Advanced Laser Technologies 2005, 2005, Tianjin, China

Abstract

A new distributed optical fiber sensing technology to detect pipeline leakage in real time is introduced in this paper, which is based on Mach-Zehnder optical fiber interferometer. The principle of this technology is analyzed, and the phase change of light wave caused by the leakage acoustic wave is discussed as well. The results of the theory analysis and the experiments show that the measuring sensitivity of detecting leakage is greatly improved. Using this technology, the gas leakage of 0.4m³/min can be detected and the measured distance is about 50km under the condition that the pressure of the gas pipe is less than 0.2Mpa.

Citation Download Citation

Yan Zhou, Shi-jiu Jin, and Zhi-gang Qu "Study on the distributed optical fiber sensing technology for pipeline leakage protection", Proc. SPIE 6344, Advanced Laser Technologies 2005, 634435 (10 June 2006); https://doi.org/10.1117/12.694438

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