【摘要】 提出了一种广角天幕靶设计方法,改进了原来天幕靶的光学结构,在采用同样的光学镜头和光电接收器件条件下,视场角增大到40°,采用双镜头拼接,整机视场增大到80°。该装置可以用来测试弹丸末速,作为较大靶面的触发装置,为其他弹道测试仪器提供同步信号。经实弹射击验证,设计的广角天幕靶性能稳定、可靠,测试误差满足靶场测试中对弹丸速度测量要求。更多还原

【Abstract】 The new method to design the wide-angle sky screens was presented. The optical structure was improved based on the original sky screens.The sensing angle was increased to 40°by using the same optical lens and photoelectric elements.And the whole sensing range will be increased to 80°if the double lens are jointed.The wide-angle sky screen can be used for measuring the terminal velocity of the projectile,and providing synchronous signal for other trajectory measurement apparatus as the trigger device of the larger sensing area.The operation of wide-angle sky screens is steady and reliable,and it can satisfy the requirement of measuring projectile velocity in ranger.更多还原