期刊
FIFTH ASIA-PACIFIC OPTICAL SENSORS CONFERENCE
卷 9655, 期 -, 页码 -出版社
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2185184
关键词
Hydrostatic leak test; leak detection; pressurized water pipe; distributed optical fiber sensor; phase-sensitive OTDR
A hydrostatic leak test for water pipeline with a distributed optical fiber vibration sensing (DOVS) system based on the phase-sensitive OTDR technology is studied in this paper. By monitoring one end of a common communication optical fiber cable, which is laid in the inner wall of the pipe, we can detect and locate the water leakages easily. Different apertures under different pressures are tested and it shows that the DOVS has good responses when the aperture is equal or larger than 4 mm and the inner pressure reaches 0.2 Mpa for a steel pipe with DN 91cmxEN 2cm.
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