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.
Continuous underground monitoring of gas leaks
Kontinuierliche Überwachung des Untergrunds auf Gaslecks
Research in Nondestructive Evaluation ; 16 , 3 ; 119-130
2005
12 Seiten, 9 Bilder, 1 Tabelle, 15 Quellen
Article (Journal)
English
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