Abstract:The plume temperature of a solid propellant rocket engine (SPRE) is a fundamental parameter in denoting combustion status. It is necessary to measure the temperature along both the axis and the radius of the engine. In order to measure the plume temperature distribution of a solid propellant rocket engine, the multi-spectral thermometry has been approved. Previously the pyrometer was developed in the Harbin Institute of Technology of China in 1999, which completed the measurement of SPRE plume temperature and its distribution with multi-spectral technique in aerospace model development for the first time. Following this experience, a new type of multi-target multi-spectral high-speed pyrometer used in the ground experiments of SPRE plume temperature measurement was developed. The main features of the instrument include the use of a dispersing prism and a photodiode array to cover the entire spectral band of 0.4 to 1.1 μm. The optic fibers are used in order to collect and transmit the thermal radiation fluxes. The instrument can measure simultaneously the temperature and emissivity of eight spectra for six uniformly distributed points on the target surface, which are well defined by the hole on the field stop lens. A specially designed S/H (Sample/Hold) circuit, with 48 sample and hold units that were triggered with a signal, measures the multi-spectral and multi-target outputs. It can sample 48 signals with a less than 10ns time difference which is most important for the temperature calculation.
Key words:Solid propellant rocket engine;Plume temperature;Multi-spectral thermometry;Emissivity;High temperature measurement
萧鹏,戴景民,王青伟. 多目标多光谱辐射高速高温计的研制[J]. 光谱学与光谱分析, 2008, 28(11): 2730-2734.
XIAO Peng, DAI Jing-min, WANG Qing-wei. Development of Multi-Target Multi-Spectral High-Speed Pyrometer. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(11): 2730-2734.
[1] DAI Jing-min, SUN Xiao-gang(戴景民, 孙晓刚). Theory and Application of Muti-Spetral Radiation Pyrometry(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. [2] SUN Xiao-gang(孙晓刚). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 2001, 20(2): 151 [3] LI Qi-nan, XU Xiao-xuan, WU Zhong-chen, et al(李奇楠, 徐晓轩, 武中臣, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2006, 26(12): 2173. [4] Sun X G, Yuan G B, Dai J M. International Journal of Thermophysics, 2005, 26(4): 1255. [5] SUN Xiao-gang, YUAN Gui-bin, DAI Jing-min(孙晓刚, 原桂彬, 戴景民). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2007, 27(2): 213. [6] XIONG Yu-hong, WEN Zhi-yu, WANG Ming-yan, et al(熊宇虹, 温志渝, 王命延, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2007, 27(1): 139. [7] DAI Jing-min, LU Xiao-dong(戴景民, 卢小冬). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 2000, 19(1): 62. [8] SUN Xiao-gang, DAI Jing-min(孙晓刚, 戴景民). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 2003, 22(2): 141. [9] Sun Xiaogang, Dai Jingmin. International Journal of Thermophysics, 2002, 23(5): 1293. [10] Fan Yi, Sun Xiaogang. International Journal of Thermophysics, 2003, 24(3): 849. [11] Sun Xiaogang. Journal of Harbin Institute of Technology, 1998, 5(3): 36. [12] Sun Xiaogang, Dai Jingmin. Journal of Harbin Institute of Technology, 2003, 10(1): 108. [13] LIU Yong, LI Bao-sheng, LIU Yan, et al(刘 勇, 李保生, 刘 艳, 等). Spectroscopy and Spctral Analysis(光谱学与光谱分析), 2006, 26(10): 1951. [14] Coppa P, Ruffino G, Spena A. High Temp. High Pressures, 1988, 22: 497. [15] DAI Jing-min(戴景民). Acta Metrologica Sinica(计量学报), 1999, 20(1):53. [16] FU Tai-ran, CHENG Xiao-fang, ZHONG Mao-hua, et al(符泰然, 程晓舫, 钟茂华, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2006, 26(12): 2166. [17] SUN Xiao-gang(孙晓刚). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 2001, 20(2): 151. [18] CONG Da-cheng(丛大成). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 2001, 20(2): 97. [19] SUN Xiao-gang, DAI Jing-min(孙晓刚, 戴景民). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 1998, 17(3): 221. [20] Dai Jingmin, Fan Yi, Chu Zaixiang. International Journal of Thermophysics, 2002, 23(5): 1401.