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Remote gas detection and quantitative analysis from infrared emission spectra obtained by Fourier transform infrared spectroscopy

Hilton, M., Lettington, A. H. and Mills, I. (1994) Remote gas detection and quantitative analysis from infrared emission spectra obtained by Fourier transform infrared spectroscopy. In: Flood, W.A. and Miller, W.B. (eds.) Atmospheric propagation and remote sensing (proceedings volume). The International Society for Optical Engineering, pp. 130-137. ISBN 9780819415264

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To link to this article DOI: 10.1117/12.177976

Abstract/Summary

Techniques for obtaining quantitative values of the temperatures and concentrations of remote hot gaseous effluents from their measured passive emission spectra have been examined in laboratory experiments. The high sensitivity of the spectrometer in the vicinity of the 2397 cm-1 band head region of CO2 has allowed the gas temperature to be calculated from the relative intensity of the observed rotational lines. The spatial distribution of the CO2 in a methane flame has been reconstructed tomographically using a matrix inversion technique. The spectrometer has been calibrated against a black body source at different temperatures and a self absorption correction has been applied to the data avoiding the need to measure the transmission directly. Reconstruction artifacts have been reduced by applying a smoothing routine to the inversion matrix.

Item Type:Book or Report Section
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Department of Meteorology
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:7660
Additional Information:Paper given at the conference 'Atmospheric Propagation and Remote Sensing III', Orlando, Florida, USA, 5 Apr 1994.
Publisher:The International Society for Optical Engineering

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