METHOD OF SIMULTANEOUS DETERMINATION OF CO AND CO MOLECULES CONCENTRATION AND DEVICE FOR SIMULTANEOUS DETERMINATION OF CO AND CO MOLECULES CONCENTRATION Russian patent published in 2010 - IPC G01N21/39 

FIELD: measurement equipment.

SUBSTANCE: inventions refer to laser spectroscopy and spectral analysis, and can be used for simultaneous diagnostics of absolute and relative content of carbon oxides CO and CO₂ in gaseous medium. For simultaneous content analysis of CO and CO₂ molecules there used are CO and CO₂ absorption lines entering the spectral range overlapped with frequency-controlled semiconducting laser, and CO absorption lines from fundamental vibration-rotation band 1-0 or obertone of that fundamental absorption band 2-0 or obertone of that fundamental absorption band 3-0, which do not overlap with absorption lines of water vapours and are located near 4.7 mcm, 2.35 mcm, 1.57 mcm correspondingly, and CO₂ absorption lines of bands 20001-01101 or 00021-01101, or 30012-00001, which are located in the same spectral ranges and overlapping with the appropriate CO absorption bands.

EFFECT: invention allows simultaneous determination of CO and CO₂ molecules concentration in gaseous medium.

4 cl, 3 dwg