Leakage detection and location analysis of tap water pipe based on distributed optical fiber temperature measurement

Ya Zhao; Qiang Wang; Zhangwei Ling

doi:10.1117/12.2505989

18 December 2018 Leakage detection and location analysis of tap water pipe based on distributed optical fiber temperature measurement

Ya Zhao, Qiang Wang, Zhangwei Ling

Author Affiliations +

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109643R (2018) https://doi.org/10.1117/12.2505989
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

A distributed optical fiber temperature measurement system based on Raman scatter and optical time domain reflecting (OTDR) was used to detect and locate the leakage of water pipe. Firstly, the temperature resolution of the system and the temperature difference at the leakage point were analyzed in the paper. Secondly, the lengths of 200m sensing fiber was used to locate the leakage of water pipe, and the detection signal was processed by accumulative averaging and wavelet transform. Finally, the location of pipe leakage was identified by comparing threshold signals and leakage signals. The experimental results show that the distributed fiber optic temperature system operation was stable and can identify the water pipe leakage.The system can leak location and the positioning error was less than or equal to 1m.

Citation Download Citation

Ya Zhao, Qiang Wang, and Zhangwei Ling "Leakage detection and location analysis of tap water pipe based on distributed optical fiber temperature measurement", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109643R (18 December 2018); https://doi.org/10.1117/12.2505989

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