DOI 10.17586/0021-3454-2020-63-9-847-856
UDC 543.422:543.422.3
OPTICAL ABSORPTION GAS ANALYZER FOR MONITORING THE MAXIMUM PERMISSIBLE CONCENTRATION OF FREONS IN THE AIR OF WORKING AND LIVING AREAS
SPA "Analitpribor", Department of Special Purpose Equipment; Head of Sector;
L. . Konopelko
ITMO University; Head of department
E. P. Tyurikova
ITMO University, Faculty of Cryogenic Engineering;
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Abstract. The type of optical absorption gas analyzer for monitoring freons concentration in the air is specified. Characteristics of the gas analyzer to be developed are determined. A functional flow diagram of the optical absorption gas analyzer is presented. A method of modulating the pressure of the analyzed gaseous medium in the working chamber is developed and analyzed. A system of interference filters for the analyzer is designed.
Keywords: gas analyzer, freon, pressure modulation, consumption agitator, pressure chamber, interference filter
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