Numerical and experimental study on leakage detection for buried gas pipelines based on distributed optical fiber acoustic wave

2021 ◽  
Vol 32 (12) ◽  
pp. 125209
Author(s):  
Jia Zhang ◽  
Zhanghua Lian ◽  
Zhaoming Zhou ◽  
Jian Zhang ◽  
Ming Xiong ◽  
...  
Keyword(s):  
Experimental Study ◽  
Acoustic Wave ◽  
Optical Fiber ◽  
Leakage Detection ◽  
Gas Pipelines ◽  
Distributed Optical Fiber

scholarly journals Comparative Experimental Study of a High-Temperature Raman-Based Distributed Optical Fiber Sensor with Different Special Fibers

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 574 ◽  
Author(s):  
Ismail Laarossi ◽  
María Quintela-Incera ◽  
José López-Higuera
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Fiber Sensor ◽  
Time Domain Reflectometry ◽  
Fiber Sensor ◽  
Mechanical Resistance ◽  
Distributed Optical Fiber Sensor ◽  
Distributed Optical Fiber

An experimental study of a high temperature distributed optical fiber sensor based on Raman Optical-Time-Domain-Reflectometry (ROTDR) (up to 450 °C) and optical fibers with different coatings (polyimide/carbon, copper, aluminum and gold) is presented. Analysis of the distributed temperature sensor (DTS) measurements determined the most appropriate optical fiber to be used in high temperature industrial environment over long periods of time. To demonstrate the feasibility of this DTS for an industrial application, an optical cable was designed with the appropriate optical fiber and it was hermetically sealed to provide the required mechanical resistance and isolate the fiber from environmental degradations. This cable was used to measure temperature up to 360 °C of an industrial furnace during 7 days.

Research on Novel Distributed Optical Fiber Pipeline Leakage Detection Technology and Location Method

2008 ◽  
Vol 28 (1) ◽  
pp. 123-127 ◽  
Author(s):  
杭利军 Hang Lijun ◽  
何存富 He Cunfu ◽  
吴斌 Wu Bin ◽  
蔡栋生 Cai Dongsheng ◽  
宋晏蓉 Song Yanrong
Keyword(s):  
Optical Fiber ◽  
Leakage Detection ◽  
Location Method ◽  
Detection Technology ◽  
Distributed Optical Fiber
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