MULTICHANNEL GAS ANALYZER Russian patent published in 1994 - IPC

FIELD: analysis of multicomponent gas mixtures. SUBSTANCE: multichannel gas analyzer has two radiation sources, two cuvettes of different lengths being in communication with each other, modulator with a set of light filters, radiation detector and multichannel recording system. The gas analyzer is characterized in that the two optic channels comprising the different-length cuvettes are combined with the aid of a selective mirror so as to provide optimum conditions for radiation absorption in gases of different concentration. EFFECT: widened operating capabilities due to analysis of components within different concentration ranges, enhanced analysis selectivity. 1 dwg