炮口激波折射率测量方法研究  

Study on Measuring Method of Refractive Index of Shock Wave in Muzzle

作　　者：王宝元[1] 钞红晓[1] 邵小军[1] 衡刚[1] 李宝辉[1] 

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《兵工学报》2013年第12期1589-1593,共5页Acta Armamentarii

摘　　要：针对炮口激波折射率测量技术问题,提出一种激波折射率测量方法。利用激光非接触测量原理,研制了炮口激波折射率测量系统,给出了激波折射率计算公式和折射率测量步骤。以某火炮为验证对象,观察到炮口激波折射现象,实现了炮口激波折射率试验测量。测量结果表明:在所选火炮炮口前方2 m处,激波折射率为1.000 480.该方法为弹丸膛内运动姿态测量和炮口运动量测量结果误差分析提供了试验依据。A new measuring method is proposed for refractive index of shock wave at muzzle according to the technical difficulty of such measurement. In terms of non-contact laser measurement principle, a system is developed for measuring the refractive index of shock wave at muzzle. The computational formula is deduced and the measurement procedure is offered for refractive index of shock wave. The refraction phenomena of shock wave were observed and the measured value of refractive index is obtained by taking a certain gun for example. The measurement results show that the measured value of refractive index is 1. 000 480 at 2 m in front of muzzle. The measuring method provides an experimental support for the measurement error analysis of projectile attitude in bore and the magnitude of muzzle motion.

关 键 词：兵器科学与技术 火炮 激波 折射率 激光 测量方法 

分 类 号：TH113[机械工程—机械设计及理论]