Multicomponent photo-acoustic (PA) gas analysis of air pollutants using a CW13C16O2-laser

Victor Kulikov; Vladimir Starovoitov; Sergei A. Trushin; V. V. Churakov

doi:10.1117/12.197404

2 January 1995 Multicomponent photo-acoustic (PA) gas analysis of air pollutants using a CW¹³C¹⁶O₂-laser

Victor Kulikov, Vladimir Starovoitov, Sergei A. Trushin, V. V. Churakov

Proceedings Volume 2370, 5th International Conference on Laser Applications in Life Sciences; (1995) https://doi.org/10.1117/12.197404
Event: Laser Applications in Life Sciences: 5th International Conference, 1994, Minsk, Belarus

Abstract

The experimental set-up using a cw ¹³C¹⁶O₂-laser for the real time multicomponent PA gas analysis is described. An intracavity PA-cell combining the `H-' and `T-'geometries simultaneously is used. The applying of a computer for laser lines tuning and a Fourier transform technique for signal processing permits us to obtain the minimum detectable absorption of 1 X 10^-9 cm^-1 with a time resolution of 30 seconds per one line. The concentrations of gas mixture component are determined by solving the linear equation systems with using a least-squares technique. The results of the experiments on detecting H₂O, CO₂, NO₂, NH₃, HNO₃, OCS and C₂H₄ in urban air are reported.

Citation Download Citation

Victor Kulikov, Vladimir Starovoitov, Sergei A. Trushin, and V. V. Churakov "Multicomponent photo-acoustic (PA) gas analysis of air pollutants using a CW¹³C¹⁶O₂-laser", Proc. SPIE 2370, 5th International Conference on Laser Applications in Life Sciences, (2 January 1995); https://doi.org/10.1117/12.197404

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