Abstract:The present paper analyzed the molecular spectra theory detailedly and summarized the factors affecting the structure and intensity-distribution of molecular rotation-vibration spectra. The authors knew that every spectral line’s relative intensity is only related to external temperature. According to this conclusion. The authors showed a new method for measuring the temperature of hot gas by FTIR spectrometry. The authors established a database for measuring the temperature-database using the database of HITRAN. The authors calibrated and validated the database using four experimental spectral data at different temperatures. After calibration, the result was very good. Compared with molecular rotation-vibration emission spectra method and maximum spectral line intensity method, this method has many advantages: simple physical-contents, easy calculation (done by a C program), high precision etc. It was a simple and applied method.
刘志明,高闽光,刘文清,张天舒,徐亮,魏秀丽,陈华. 傅里叶变换红外光谱测量热气体温度新方法初步研究[J]. 光谱学与光谱分析, 2008, 28(04): 770-774.
LIU Zhi-ming,GAO Min-guang,LIU Wen-qing,ZHANG Tian-shu,XU Liang,WEI Xiu-li,CHEN Hua. Initial Study of a New Method for Measuring the Temperature of Hot Gas by FTIR Spectrometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(04): 770-774.
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