Measurement of SO2 and SO3 using a tunable diode laser system

Timothy A. Berkoff; Joda C. Wormhoudt; R. C. Miake-Lye

doi:10.1117/12.339057

10 February 1999 Measurement of SO2 and SO3 using a tunable diode laser system

Timothy A. Berkoff, Joda C. Wormhoudt, R. C. Miake-Lye

Proceedings Volume 3534, Environmental Monitoring and Remediation Technologies; (1999) https://doi.org/10.1117/12.339057
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

We describe the set-up and operation of a mid-infrared (lead- salt) tunable diode laser system used to measure SO₂ and SO₃ levels in the exhaust plume of an aircraft engine in an altitude test chamber. These measurements were part of an on-going effort to determine the sulfur emission and conversion of SO₂ to SO₃ in a representative exhaust under different altitudes, power conditions, and fuel sulfur loadings. Results obtained using this set-up demonstrate the ability to measure SO₂ concentrations in the low ppmv range and the possibility of detecting SO₃ when it is present at similar levels.

Citation Download Citation

Timothy A. Berkoff, Joda C. Wormhoudt, and R. C. Miake-Lye "Measurement of SO2 and SO3 using a tunable diode laser system", Proc. SPIE 3534, Environmental Monitoring and Remediation Technologies, (10 February 1999); https://doi.org/10.1117/12.339057

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