Diode laser sensor for process control and environmental monitoring

Y. Zaatar, J. Bechara, A. Khoury, D. Zaouk and J. -P. Charles

Applied Energy, 2000, vol. 65, issue 1-4, 107-113

Abstract: Absorption spectroscopy with tunable diode lasers (TDLAS) in the infrared region is a well-known technique for the chemical analysis of gas mixtures. The laser provides a high selectivity, which is important in industrial environments such as in-line stack monitoring, where complex gas mixtures are present. A wavelength tunable diode laser in the near infrared region has been utilized as a light source in absorption measurements of air pollution resulting from energy usage for industry. The emission frequency can be varied over a relatively wide spectral range by changing the current and temperature of the diode.

Keywords: Methane; Modulation; Pollution; Spectroscopy; Tunable; diode; laser (search for similar items in EconPapers)
Date: 2000
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Citations: View citations in EconPapers (1)

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