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本文报道了用电加热和光加热非稳态法及用电加热稳态法测量半球向全发射率装置,并介绍了金属及以金属为底材的涂层半球向全发射率的测定结果。通过对比该装置三种测试方法所得实验结果以及对光加热非稳态法的检验,说明上述三种发射率测量方法是可靠的。
This paper reports the measurement of hemispherical full emissivity device by electric heating and light heating unsteady method and electric heating steady state method. And the results of measuring the full emissivity of metal and metal-based coating hemisphere are introduced. By comparing the experimental results obtained by the three test methods of the device and the test on the unsteady light heating method, it is proved that the above three emissivity measurement methods are reliable.