区截测速系统无偏一致有效性考核方法实验研究

Experimental Study on Unbiased Uniformly Valid Assessment Method of Zone—Block Velocity Measuring System

区截测速装置测量弹体运动速度的精度一直是人们关注的问题之一。由于速度是导出量,目前还没有真正的"标准"装置对区截测速系统进行考核。基于统计学原理,提出了区截测速系统测量值的无偏、一致、有效性的考核方法。用外弹道飞行特性较优秀的某型枪弹作为速度源,对由四对光幕靶组成的区截测速系统开展实验研究。实验结果分析表明四对光幕靶能够通过无偏、一致、有效性的检验。

Precision of zone-block device measuring projectile-velocity has always been one of concern.Due to the velocity is derived quantity,there is no real ＂ standard＂ device to assess zone-block device measuring projectile velocity.Based on the principle of the mathematical statistics,an assessment method which is unbiased,uniform and efficient is proposed.A kind of bullet that has good outside ballistic flight characteristic is chosen as velocity source.Research on zone-block velocity measuring system composed of four pairs laser screen targets is carried out.Experimental results show that the four pairs laser screen targets can be unbiased,consistent,and the effectiveness of the inspection.