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在冶金连铸生产条件下，由于在铸坯表面和辐射高温计之间存在着辐射－吸收性介质，因此无法准确获得铸坯表面的真实温度．本文构造了此条件下的连铸测温模型，即在两不透明的无限大平板间存在一灰的水蒸气区和一非灰的水雾区．并在此基础上进行了反问题的研究，通过迭代法估计连铸坯表面的真实温度．研究了各参数对最终计算结果的影响，其中，本雾区厚度及其减弱系数影响最大，需在计算中给予足够重视；其余参数影响很小，可以忽略．
In the case of metallurgical continuous casting, the true temperature of the slab surface can not be accurately obtained due to the presence of the radiation-absorbing medium between the surface of the slab and the radiation pyrometer. In this paper, the continuous casting temperature measurement model under this condition is constructed, that is, there is an ash water vapor zone and a non-ash water fog zone between two opaque and infinite plates. On this basis, the inverse problem was studied, and the true temperature of the slab surface was estimated by iterative method. The influence of each parameter on the final calculation results is studied. Among them, the thickness of the fog zone and its attenuation coefficient have the greatest impact, and sufficient attention should be paid in the calculation. The remaining parameters have little influence and can be neglected.