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摘要: 应用电磁线路中涨落耗散理论，推导了不同温度均匀二半空间接触后产生辐射场密度的公式。将此公式近似展开后，即得Grover和Urtiew所获得的表示式，不过多了一松弛项，该项如用非富里叶热传导理论推导，也是存在的。该结果和实验结果一致，不过这里的松驰时间可以应用介质性质进行计算。Abstract: By using the fluctuation dissipation theorem in electro-magnetic circuits, the thermal radiation energy density at any point of two half-space in contact with different temperatures derived. By approximate expansion of the derived equations, the temperature expressions at any point are obtained, which are exactly similar to that obtained by Grover and Urtiew except there appears an additional relaxation term which is also existent in the method of non-Fourier heat conduction. The result is in accord with that of the experimental and the relaxation time can be calculated by the properties of the material.
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