枪口火光探测系统研究

System Research Based on Muzzle Flame

针对枪口火光探测系统中存在的探测灵敏度低及系统信噪比低的主要问题,论文基于PBS探测器主要研究火光探测系统中的前端探测系统。建立了探测器遇到火光时的数学模型,通过分析探测器前端的电压变化量,求得有最大电压变化时的最佳匹配电阻,以便提高探测灵敏度与系统的信噪比。论文根据选择的PBS探测器,经过对12.7mm步枪枪口火光的探测证明了最佳匹配电阻数学模型的正确性。

Focused on the problem of low sensitivity and low signal to noise ratio(SNR)in the detection system of muzzleflame,this paper mainly researches froe-end detection circuit of muzzle detection system which is based on PBS detector. The math-ematical model of the detector is established and through analyzing the voltage change ratio at front of the detector,the best match-ing resistance has obtained with the maximum voltage change ratio,which is improve the detection sensitivity and SNR of the sys-tem. The paper chooses the PBS detector and best matching resistance mathematical model is proved by detecting the flame of12.7 mm rifle.