NDLI: Underwater natural gas pipeline leakage detection based on interferometric fiber optic sensor in experiment-scale

Content Provider	IEEE Xplore Digital Library
Author	Qiang Wang Xiaowei Wang
Copyright Year	2010
Description	Author affiliation: School of Quality and Safety Engineering, China Jiliang University, Hangzhou, 310018, China (Qiang Wang; Xiaowei Wang)
Abstract	A distributed optical fiber sensor of underwater gas transmission pipeline leak detector is demonstrated based on spectrum analysis of hybrid interferometer OTDR system. The feasibility of separately locating underwater pipe leaky source and phase signal demodulation scheme were theoretically analyzed. The system is capable of detecting simulated gas pipeline leakage acoustic signal. In underwater waveguide laboratory, the interferometer was used to localize leaky source. The water flow velocity varies from 2 m/s to 4 m/s. The ambient noise interference produced by flow current was discussed. The wavelet transform was performed to improve null frequency capture ability. The localization scheme is tested by the partial experiment data.
Starting Page	257
Ending Page	260
File Size	265601
Page Count	4
File Format	PDF
ISBN	9781424451814
DOI	10.1109/CCDC.2010.5499075
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical interferometry Pipelines Interferometer Underwater Underwater tracking Acoustic signal detection Gas Pipeline Leak detection Optical fiber sensors Leakage Detection Optic Fiber Signal analysis Natural gas Gas detectors Demodulation
Content Type	Text
Resource Type	Article

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