21 September 1988 A Fibre Optic Methane Sensor Having Improved Performance
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Proceedings Volume 0949, Fibre Optics '88; (1988) https://doi.org/10.1117/12.947535
Event: Sira/Fibre Optics '88, 1988, London, United Kingdom
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.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. P. Dakin, J. P. Dakin, W. F. Croydon, W. F. Croydon, N. K. Hedges, N. K. Hedges, } "A Fibre Optic Methane Sensor Having Improved Performance", Proc. SPIE 0949, Fibre Optics '88, (21 September 1988); doi: 10.1117/12.947535; https://doi.org/10.1117/12.947535


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