METHOD OF MEASUREMENT OF OXYGEN CONCENTRATION IN HYDROGEN-CONTAINING GAS MIXTURE AND GAS ANALYZER Russian patent published in 2007 - IPC G01N27/12 

FIELD: methods and devices for inspection of parameters of gaseous media.

SUBSTANCE: method of measurement of oxygen concentration in hydrogen-containing medium is based upon introduction of gaseous mixture into contact with warmed input hydrogen sensor, mounted in input part of gas analyzer channel's cavity, and upon registration of concentration of hydrogen in initial gaseous medium by means of registrar. Then initial gaseous mixture is passed through warmed catalyst-active element and complete recombination of at least one agent is performed, which is oxygen and/or hydrogen. Final gaseous mixture, after it has passed catalyst-active layer, is brought into contact with warmed output hydrogen sensor and oxygen sensor, both mounted in output part of channel's cavity, and concentrations of hydrogen and oxygen are registered in final gaseous mixture. Real oxygen concentration in initial gaseous mixture is determined in relation to measured hydrogen concentration and oxygen concentration in final gaseous mixture. Oxygen concentration can be continuously monitored in gaseous mixture inside room in automatic mode.

EFFECT: improved degree of precision.

2 cl, 1 dwg