Real-Time Measurement of Detonation Transient Temperature
ZHENG Jin-kun1,3, BAI Yong-lin2*, WANG Bo2, LIU Bai-yu2, YANG Wen-zheng2, BAI Xiao-hong2, QIN Jun-jun2, ZHAO Jun-ping1, GOU Yong-sheng1, LIU Hui1,3
1. Key Laboratory of Ultrafast Photoelectric Diagnostic Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China 2. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China 3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Abstract：Based on the spectral characteristic of the detonation temperature, the present paper presents a measurement system of transient multi-wavelength pyrometry with the theory of multi-wavelength thermometry. The FPGA was applied as the hardware developing platform and the high-speed linear CCD was utilized. Each module was controlled by FPGA to achieve the process of real-time data acquisition, storage and transmission. Using the multiple regression analysis method, the dynamic spectral waveforms were calculated. The two laser spectral lines, 630 and 532 nm, were used to calibrate the corresponding pixel sequence numbers and the No.175 and No.270 were confirmed. In this paper, the halide tungsten light was measured. The results show that the system can sample continuous spectrum signal at several different times; the CCD can stably work with 40 MHz clock and the frame scanning frequency can achieve 73 kHz.
Key words：Mechanics of explosion;Detonation temperature;FPGA;High-speed linear CCD;Multi-wavelength temperature measurement
郑锦坤1,3，白永林2*，王 博2，刘百玉2，杨文正2， 白晓红2，秦君军2，赵军平1，缑永胜1，刘 辉1,3 . 炸药爆轰瞬时温度的实时测量[J]. 光谱学与光谱分析, 2011, 31(11): 3060-3063.
ZHENG Jin-kun1,3, BAI Yong-lin2*, WANG Bo2, LIU Bai-yu2, YANG Wen-zheng2, BAI Xiao-hong2, QIN Jun-jun2, ZHAO Jun-ping1, GOU Yong-sheng1, LIU Hui1,3 . Real-Time Measurement of Detonation Transient Temperature . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 3060-3063.
