论文部分内容阅读
天幕靶是用于测量弹丸速度较为普遍的光学测量仪器。在测量弹丸速度时,要求弹道垂直于天幕靶的靶面,当弹道不垂直预定靶面时,弹丸飞越两个天幕靶靶面的实际距离与两靶靶距存在一定的误差,斜入射角度越大误差越大。提出了一种用6个天幕构成天幕阵的速度测量系统。当弹丸以任意方向穿越6个天幕时,测时仪记录弹丸穿越各个天幕的时间间隔,根据这些时间间隔便可以求出弹丸的速度值和速度的飞行方向。该方案解决了弹丸斜入射时速度测量不准的问题,特别适用于枪弹末速度的测量。
Canopy target is used to measure projectile speed is more common optical measuring instruments. When measuring projectile velocity, the trajectory perpendicular to the target of the canopy target is required. When the trajectory is not perpendicular to the predetermined target surface, the actual distance of the projectile flying over the two target surfaces of the canopy object and the target distance of the two targets has a certain error. The angle of oblique incidence Big error is bigger. A speed measuring system composed of six sky curtains is proposed. When the projectile traverses six canopies in any direction, the projectile records the time interval during which the projectile traverses the various canopies. Based on these time intervals, the projectile velocity and the flight velocity can be obtained. The solution solves the problem of inaccurate speed measurement when the projectile is obliquely incident, and is particularly suitable for measuring the velocity of a bullet.