FIELD: instrumentation engineering. SUBSTANCE: thermochemical gas analyzer has sensitive element in the form of spiral connected to wire leads, enclosed in porous medium treated with catalyst and installed in holder. Dielectric backing with film contacts that are connected to wire leads of sensitive element is used in the capacity of holder. Sensitive element is positioned above hole made in dielectric backing. Film heater with at least two film contacts is located on section of dielectric backing between hole and its side edges. EFFECT: enhanced operational reliability and sensitivity. 5 cl, 1 dwg
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