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27 July 2004 Leakage detection using fiber optics distributed temperature monitoring
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The monitoring of temperature profiles over long distance by means of optical fibers represents a highly efficient way to perform leakage detection along pipelines, in dams, dykes, or tanks... Different techniques have been developed taking advantages of the fiber geometry and of optical time domain analysis for the localization of the information. Among fiber optics distributed temperature sensing techniques, Brillouin-based systems have demonstrated to have the best potential for applications over distances up to several tens of kilometers. The key features and performances are reviewed in the present article and a 55km pipeline equipped with a fiber optics leakage detection system is presented as a case study.
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Marc Nikles, Bernhard H. Vogel, Fabien Briffod, Stephan Grosswig, Florian Sauser, Steffen Luebbecke, Andre Bals, and Thomas Pfeiffer "Leakage detection using fiber optics distributed temperature monitoring", Proc. SPIE 5384, Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems, (27 July 2004);

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