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Measurements of cross-sensitivity to contaminant gases, using a highly-selective, optical-fibre-remoted methane sensor, based on correlation spectroscopy

Henry O.Edwards and John P.Dakin


An optical-fibre methane sensor which uses a correlation technique based on pressure modulation is reviewed. The sensitivity to methane was measured, and the cross-sensitivity to a number of contaminant gases, such as ethane, has been determined. The performance of this system is compared with conventional gas-absorption measurement techniques in order to determine a figure of merit for the selectivity improvement.

Proceedings to SPIE OE/Fibers Conference Boston Sep (1991) Vol.1587

Southampton ePrint id: 77417


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Copyright University of Southampton 2006