| 摘要 |
FIELD: physics. ^ SUBSTANCE: thermocatalytic element is put into a measuring chamber and an electric current pulse is applied on it. The amount of heat , dissipated on the thermocatalytic element in a time interval ä1 to ä2, in the absence of combustible gases in the oxygen-containing medium, is determined. Further, the amount of heat Q1-2, dissipated on the thermocatalytic element in a time interval ä1 to ä2, in the presence of combustible gases in the oxygen-containing medium, is determined. ä1 is the onset time of the electric current pulse and ä2 is its end time, with establishment of a constant value of signal from the thermocatalytic element. Concentration of combustible gas in the oxygen-containing medium is then determined. ^ EFFECT: more accurate determination. ^ 3 dwg, 1 tbl
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