A gas-leak-detection system was designed based on the concept of oxygen-level measurement. Optical fibers were produced with gas-permeable polymeric cladding material doped with oxygen-responsive porphyrin sensor molecules and subsequently interrogated via the evanescent field along the fiber length. Tests were performed with simulated methane-gas leaks in air and under dry and saturated sand. Results of sensor sensitivity, response time, and reversibility are presented.


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    Title :

    Continuous underground monitoring of gas leaks


    Additional title:

    Kontinuierliche Überwachung des Untergrunds auf Gaslecks


    Contributors:
    Khalil, G.E. (author) / Kimura, F. (author) / Chin, A. (author) / Ghandehari, M. (author) / Wan, R. (author) / Shinoki, W. (author) / Gouterman, M. (author) / Callis, J.B. (author) / Dalton, L.R. (author)

    Published in:

    Publication date :

    2005


    Size :

    12 Seiten, 9 Bilder, 1 Tabelle, 15 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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