Thermal Conductivity Detector 2
Thermal Conductivity Detector 2 : In sample analysis, uses a hot wire or a thermistor as the sensing device. The readout is based upon the heat transfer from the hot filament to a cooler surface as the gas conducts heat from the filament to the wall. The amount of electrical energy supplied to the filament remains constant so any change in temperature (of the filament) will be a function of the thermal conductivity of the gas and its concentration
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