光幕靶测量破片群初速的方法

针对计算战斗部杀伤概率和引战配合参数,提出一种六幕光幕靶对战斗部破片群初速进行测量的方法.给出了六幕光幕靶的测量原理.可以通过测量多个破片的飞行速度与飞行姿态角,推导出速度衰减系数.采用多台六幕光幕靶圆形放置,同时参与测试,再根据破片速度衰减公式确定破片群的初速.同时对沿战斗部轴向的破片初速进行了探讨,用其初速分布更准确地表示战斗部的初速分布,讨论了误差影响因素.

A Method for Measuring the Initial Velocity of Fragment Group of Warhead with Light Screens

A measuring method for the initial velocity of fragment group with six light screens is presented in order to calculate the parameters of killing probability and the coordination between fuze and warhead. The measuring principle of six light screens is described. After measuring the velocities of many fragments and the flying angle, the coefficient of velocity attenuation can be calculated. Many sixlight-screen systems are placed in a circle and n fragments can be measured in the same time. According to the velocity attenuation formula of fragments, the initial velocity of fragment group is determined. At the same time, the velocity distribution along the warhead axis is also researched. At last the influence factors on the measurement error are investigated.