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Proceedings Paper

A Fibre Optic Methane Sensor Having Improved Performance
Author(s): J. P. Dakin; W. F. Croydon; N. K. Hedges
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Paper 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.

Paper Details

Date Published: 21 September 1988
PDF: 8 pages
Proc. SPIE 0949, Fibre Optics '88, (21 September 1988); doi: 10.1117/12.947535
Show Author Affiliations
J. P. Dakin, Plessey Research Roke Manor Limited (UK)
W. F. Croydon, Plessey Research Roke Manor Limited (UK)
N. K. Hedges, Plessey Controls Limited (UK)

Published in SPIE Proceedings Vol. 0949:
Fibre Optics '88
Lionel R. Baker, Editor(s)

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