Open-path UV Fourier transform gas monitor with no moving parts

James P. Lenney; W. J.S. Hirst; Miles J. Padgett; Brett A. Patterson; N. K. Hedges; D. Strachan; Wilson Sibbett

doi:10.1117/12.274722

22 May 1997 Open-path UV Fourier transform gas monitor with no moving parts

James P. Lenney, W. J.S. Hirst, Miles J. Padgett, Brett A. Patterson, N. K. Hedges, D. Strachan, Wilson Sibbett

Proceedings Volume 3106, Spectroscopic Atmospheric Monitoring Techniques; (1997) https://doi.org/10.1117/12.274722
Event: Environmental Sensing III, 1997, Munich, Germany

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.

Citation Download Citation

James P. Lenney, W. J.S. Hirst, Miles J. Padgett, Brett A. Patterson, N. K. Hedges, D. Strachan, and Wilson Sibbett "Open-path UV Fourier transform gas monitor with no moving parts", Proc. SPIE 3106, Spectroscopic Atmospheric Monitoring Techniques, (22 May 1997); https://doi.org/10.1117/12.274722

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