A Fibre Optic Methane Sensor Having Improved Performance

J. P. Dakin; W. F. Croydon; N. K. Hedges

doi:10.1117/12.947535

21 September 1988 A Fibre Optic Methane Sensor Having Improved Performance

J. P. Dakin, W. F. Croydon, N. K. Hedges

Author Affiliations +

Proceedings Volume 0949, Fibre Optics '88; (1988) https://doi.org/10.1117/12.947535
Event: Sira/Fibre Optics '88, 1988, London, United Kingdom

Abstract

This paper describes improvements to a novel fibre optic methane sensor which has several advantages over previously published fibre optic techniques. As with the earlier method, it is based on a scanning Fabry Perot etalon filter and is self-referencing, requiring only a single optical sensing path and photodetector. A laboratory version of the sensor, employing a white light source, has been constructed and tested, and was found to be capable of detecting 0.01% by volume methane in air, with a response time of approximately 1 second.

Citation Download Citation

J. P. Dakin, W. F. Croydon, and N. K. Hedges "A Fibre Optic Methane Sensor Having Improved Performance", Proc. SPIE 0949, Fibre Optics '88, (21 September 1988); https://doi.org/10.1117/12.947535

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