| abstract |
The invention discloses a black body and sample integrated heating device and method for measuring spectral emissivity, which adopts a high-purity metal tungsten tube as a heating body, uses a corundum tube as a heat conductor and an insulator, and transfers heat to a graphite tube The wall and the graphite base form a black body isothermal chamber; the graphite base as the bottom of the black body cavity is also a heat conductor in the heating process of the sample, and the sample is heated to the same temperature as the black body. The black body and the sample integrated heating device adopt a set of heating And the temperature control unit realizes the synchronous heating of the black body and the sample, ensuring the consistency of the temperature of the black body and the sample. The invention has the advantages of high measurement accuracy, good repeatability, compact structure and low cost in the spectral emissivity measurement system. |