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该文利用高分辨率（０．１２５ｃｍ－１）的傅里叶变换红外光谱仪，对美国和日本科学家提出的分子振转谱带拟合法测量气体温度的方法做了改进，提出了一种较为快速、简便的测量和计算方法。利用ＣＯ基带（０→１）精细结构中Ｒ分支和（或）Ｐ分支（｜ｍ｜＝１一２７）线性回归的方法，确定了气体温度。其结果与实际值一致。
In this paper, a high-resolution (0.125cm-1) Fourier transform infrared spectrometer was used to improve the method of measuring the gas temperature by the molecular vibrational band fitting proposed by the U.S. and Japanese scientists. A fast method , Easy measurement and calculation methods. The gas temperature was determined by the linear regression of the R branch and / or P branch (| m | = 1 to 27) in the fine structure of the CO baseband (0 → 1). The result is consistent with the actual value.