Flame Temperature Distribution Measurement of Solid Propellants
ZHAO Wen-hua1, ZHU Shu-guang1, LI Yan2, FANG Zhong-yan2,YANG Rong-jie3, LI Yu-ping3, ZHANG Jie3, LIU Yun-fei3
1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China 2. Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China 3. Beijing Institute of Technology, Beijing 100081, China
Abstract：Many high temperature bodies such as flame, in which chemical reactions are very complex, emit their own spectra. These emission spectra usually consist of the spectral lines, spectral bands and the continuous spectra. In some cases, the spectral lines gather together. It is very difficult to find the right single spectral line when the spectral line intensity method is used. To deal with this problem, the idea that the single spectral line intensity is replaced by the total intensity of many spectral lines to measure the temperature is mentioned. And the relative intensity method is also changed to deal with this idea. The measurement of the temperature distribution based on this improved method is successful, and the measurement results are compared with the results of the thermocouple method.
Key words：Solid propellant;Temperature distribution
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