霰弹飞行速度的测量方法与结果分析

该文讨论测量全叫缩膛口射出霰弹飞行速度的两种方法，并对测量结果进行分析。一是借助高速摄影设备测量霰弹的膛口飞行速度，结果表明，其飞行速度平均为４８０ｍ／ｓ，弹子的纵向扩散速度平均为４７ｍ／ｓ，横向扩散速度平均为２９ｍ／ｓ；二是采用区截铝箔靶装置测量单个霰弹子飞行速度，结果表明，２０ｍ射距时平均为３６１ｍ／ｓ，３０ｍ射距时平均为３０７ｍ／ｓ，４０ｍ射距时平均为２５７ｍ／ｓ，因弹子穿过四层铝箔纸，其受

The Measuring Methods for Shot Flying Velocity and the Analysis of the Measured Results

Two methods of measuring the velocity of flying shots and the measured results have been discussed in this paper. One is the high velocity photogram for measuring the velocities of the shots at near the muzzle The results showed that the average velocity of the shots is about 480m/s,the radial spreading velocity of the shots about 49m/s,and the traverse spreading velocity about 30m/s.The other is the system of segmented aluminium foil target for measuring the single shot flying velocity at a different range and the results showed that on an average, the velocity is about 361m/s at range 20 meters,307m/s at range 30 meters and 257m/s at range 40 meters.The reduction of the velocity decrease is about 16% due to the four layer foil.