FIELD: measurement technology. SUBSTANCE: device incorporates generator, power supply source, key, measurement bridge into which arm heating filament-pickup is placed. Additional variable resistor is added into arm of bridge having heating filament-pickup, additional filament-pickup showing same temperature coefficient of resistance as first filament-pickup is placed in series in another arm of bridge one of whose inputs is connected to first heating filament-pickup. Heating filament-pickup is located inside cylindrical tube. Procedure measuring thermal physical properties of liquids and gases with the aid of above- mentioned device makes it possible to determine viscosity of liquids and gases in addition to thermal diffusivity. EFFECT: increased informativity of procedure. 2 cl, 1 dwg, 1 tbl
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