Abstract：The radiation spectrum of pyrotechnics’ burning flame was analyzed using transient spectrum radiometer. The working principle of multi-spectral thermometry was described. Combined with the radiation spectrum of pyrotechnics’ burning flame, the multi-spectral thermometer system was designed which had twelve working channels. The tester can choose the right working channels to calculate according to the radiation spectrum of the flame to be tested. The system is composed by optics part, electronic part, data acquisition part and data processing part. In this paper, the emissive power of black powder’s flame has been tested using the multi-spectral thermometer system. The burning flame temperature-time curve was showed after iteration calculation. Experiments indicate that the multi-spectral thermometer system can be well used to measure the flame temperature of pyrotechnics based on analyzing the emissive power when choosing the right working channels. This method lays a foundation for the research of combustion output characteristics of pyrotechnics.
Key words：Multi-spectral pyrometer system;Pyrotechnics;Burning flame temperature
李占英1，席兰霞1，陈 军2，郭崇星1，刘春建1，刘欢杨1 . 多光谱辐射测温技术测量火工烟火药剂燃烧温度 [J]. 光谱学与光谱分析, 2010, 30(08): 2062-2064.
LI Zhan-ying1, XI Lan-xia1, CHEN Jun2, GUO Chong-xing1, LIU Chun-jian1, LIU Huan-yang1 . Study on Flame Temperature Measurement of Pyrotechnics Using Multi-Spectral Thermometer . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(08): 2062-2064.
[1] Atsushi Ishihara. An Evaluation in Temperature Measurement of the Burning Surface by a Thermocouple. AIAA 2001-3578. [2] DAI Jing-min, SUN Xiao-gang(戴景民, 孙晓刚). Theory and Appliciton of Multi-Spectral Radiation Thermometry(多光谱辐射测温理论与应用). Beijing: Higher Education Press(北京：高等教育出版社), 2002. [3] JIN Zhao, XIAO Peng, DAI Jing-min(金 钊, 萧 鹏, 戴景民). Journal of Combustion Science and Technology(燃烧科学与技术), 2006, 12(3)：213. [4] SUN Xiao-gang, YUAN Gui-bin, LIN Ke-feng, et al(孙晓刚，原桂彬，林科锋，等). J. Tsinghua University (Science and Technology)(清华大学学报·自然科学版)，2005，45(7)：999. [5] FAN Chuan-xin, WANG Peng(范传新，王 鹏). J. of Astronautic Metrology and Measurement(宇航计测技术)，2006，26(4)：18.
