气体温度的高分辨率傅里叶变换红外光谱测量

Gas Temperature Estimation of Carbon Monoxide Using High Resolution FTIR Spectroscopy.

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。

The fine structure in the foundamental band of carbon monoxide is scaned by high resolution(0.125cm-1)Fourier Transform Infrared Spectroscopy, There are 27 rotation vibration lines for the P-and R- branches,respectively. A fast and convenient method for determining gas temperature is developed on the basis of band fitting method.Temperatures calculated from the R-and/or P-branches have good results and agree well with the results obtained by other methods.