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冲击波后温度测量是一种对瞬态高温的测量。一般是通过窗口观察样品和窗口交界面上的热辐射进行的。其理论均是根据Grover和Urtiew的表示式,应用富利叶热传导理论来定界面上的温度,其温度从冲击波一出样品表面,应在一段时间内保持不变。古成钢和汤文辉等重复了这种温度测量,得到了冲击波从一出界面就下降的结果,不出现平台。该文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,但多了一松弛项,该项如用非富利叶热传导理论推导,也是存在的。这样,该结果和实验结果将一致。
Shock wave temperature measurement is a measurement of transient high temperature. It is generally done by observing the heat radiation on the sample and window interface through the window. The theory is based on Grover and Urtiew’s expression, the application of Fourier thermal conduction theory to determine the interface temperature, the temperature from the shock wave a sample surface, should remain unchanged for some time. Gu Chenggang and Tang Wenhui, etc. repeated this temperature measurement, the shock wave was obtained from a decline in the interface results, there is no platform. In this paper, the theory of fluctuation and dissipation in electromagnetic circuit is used to deduce the formula of the radiation field density after two half-space contact at different temperatures. After approximating this formula, we obtain the expression obtained by Grover and Urtiew, but with a more relaxed term, as it is derived from the non-Fourier-leaf theory of heat conduction. In this way, the results will be consistent with the experimental results.