Experiment on a distributed fiber optic interferometric sensing system to monitor and locate urban high density polythene gas pipe leakage

Han, Lingjuan, Liao, Xiaoling, Wang, Qiang

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For Russian citation (Opticheskii Zhurnal):

Qiang Wang, Lingjuan Han, Xiaoling Liao Experiment on a distributed fiber optic interferometric sensing system to monitor and locate urban high density polythene gas pipe leakage (Эксперимент по распределенной волоконно-оптической интерферометрической системе зондирования для мониторинга и определения мест утечки в городских газопроводах из полиэтилена высокой плотности) [на англ. яз.] // Оптический журнал. 2021. Т. 88. № 9. С. 75–84. http://doi.org/10.17586/1023-5086-2021-88-09-75-84

Qiang Wang, Lingjuan Han, Xiaoling Liao Experiment on a distributed fiber optic interferometric sensing system to monitor and locate urban high density polythene gas pipe leakage (Эксперимент по распределенной волоконно-оптической интерферометрической системе зондирования для мониторинга и определения мест утечки в городских газопроводах из полиэтилена высокой плотности) [in English] // Opticheskii Zhurnal. 2021. V. 88. № 9. P. 75–84. http://doi.org/10.17586/1023-5086-2021-88-09-75-84

For citation (Journal of Optical Technology):

Q. Wang, L. Han, and X. Liao, "Experiment on a distributed fiber optic interferometric sensing system to monitor and locate urban high-density polyethylene gas pipe leakage," Journal of Optical Technology. 88(9), 536-542 (2021). https://doi.org/10.1364/JOT.88.000536

Abstract:

A distributed fiber optical interferometric sensing system was built to monitor and detect urban high density polythene gas pipe leakage. To eliminate the phase drift, the digital phase generated carrier scheme was designed to demodulate the phase difference of interferometers induced by high density polythene gas pipe leakage. Then the empirical mode decomposition and approximate entropy were combined to process fiber optic interferometric signals. Finally, leakage points werelocated by null frequency spectrum after empirical mode decomposition filter denoising. The labscale test validated the distributed fiber optical interferometric sensing system leakage location performance and demonstrated reduced leakage accident missing alarm rate.

Keywords:

distributed fiber optic sensor, high density polythene pipe, leakage localization, empirical mode decomposition, approximate entropy

Acknowledgements:

This work was supported by National Natural Science Foundation of China under grant 51374188.

OCIS codes: 060.2370, 120.0120, 120.3180, 140.3430, 220.4880

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