Optoelectronic Technology, Volume. 43, Issue 2, 133(2023)

A Broken Wire Detection System of PCCP Pipeline Based on Φ‑OTDR and MZI

Fei XIONG1, Boyang QU4, Guangnan ZHOU2, Haoran WANG2, Xuping ZHANG2, Lei LIANG2, Jin WANG3, Shisong ZHAO4, Dao ZHANG4, Feng WANG2, and Yixin ZHANG2
Author Affiliations
  • 1Inner Mongolia Electric Power Survey & Design Institute Co., Ltd, Hohhot 000,CHN
  • 2College of Engineering and Applied Sciences,Nanjing University, Nanjing 1003, CHN
  • 3Beijing Aqua Intelligent Technology Co., Ltd, Beijing 102400, CHN
  • 4Nanjing Fiber Photonics Technology Co., Ltd, Nanjing 211135, CHN
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    A broken wire detection system of prestressed concrete cylinder pipe (PCCP) pipeline combined with phase‑sensitive optical time domain reflectometry (Φ‑OTDR) and Mach‑Zehnder interferometer (MZI) which reduced the amount of data computation by 40% through inducing optimized in‑phase quadrature (IQ) demodulation algorithm was designed. The results of the experiment showed 20 kHz frequency response and ±2 m spatial positioning error over 20 km long fiber for single-end measurement which indicated the system could position broken wire incidents along long distance and distinguish characteristic frequencies of vibration incidents. The proposed method provided a reliable technical means for online structure health detection with full lifecycle coverage of PCCP pipeline.


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    Fei XIONG, Boyang QU, Guangnan ZHOU, Haoran WANG, Xuping ZHANG, Lei LIANG, Jin WANG, Shisong ZHAO, Dao ZHANG, Feng WANG, Yixin ZHANG. A Broken Wire Detection System of PCCP Pipeline Based on Φ‑OTDR and MZI[J]. Optoelectronic Technology, 2023, 43(2): 133

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    Paper Information

    Category: Research and Trial-manufacture

    Received: Nov. 27, 2022

    Accepted: --

    Published Online: Aug. 31, 2023

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