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Proceedings Paper

Open-path UV Fourier transform gas monitor with no moving parts
Author(s): James P. Lenney; W. J.S. Hirst; Miles J. Padgett; Brett A. Patterson; N. K. Hedges; D. Strachan; Wilson Sibbett
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Paper Abstract

New legislation requiring the monitoring and reduction of polluting gases in both Europe and the US has increased the demand for reliable and affordable Open Path Monitoring Systems, suitable for hazardous area operation. We report on the research and development of a UV Fourier-transform spectrometer based system for open path monitoring of both hazardous and environmental gases. The device has no moving parts and is designed for unattended operation. Laboratory tests have successfully detected the present of and differentiated between SO2 and H2S present in a 1 meter test cell down to 1.0 ppm.m levels. the real time response of the system allows for the use of maximum entropy modeling to predict the size and location of a gas leak. Initial field tests with open air gas releases of SO2 and H2S have verified this. The multiple gas feature of the instrument allows for additional possible applications with regards to environmental monitoring.

Paper Details

Date Published: 22 May 1997
PDF: 10 pages
Proc. SPIE 3106, Spectroscopic Atmospheric Monitoring Techniques, (22 May 1997); doi: 10.1117/12.274722
Show Author Affiliations
James P. Lenney, Siemens Environmental Systems Ltd. (United Kingdom)
W. J.S. Hirst, Shell Research Ltd. (United Kingdom)
Miles J. Padgett, Univ. of St. Andrews (United Kingdom)
Brett A. Patterson, Univ. of St. Andrews (United Kingdom)
N. K. Hedges, Siemens Environmental Systems Ltd. (United Kingdom)
D. Strachan, Shell Research Ltd. (United Kingdom)
Wilson Sibbett, Univ. of St. Andrews (United Kingdom)

Published in SPIE Proceedings Vol. 3106:
Spectroscopic Atmospheric Monitoring Techniques
Klaus Schaefer, Editor(s)

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