狭缝联动摄影外弹道测试基础系统采用多台狭缝高速摄影机联动方式对飞行弹丸的速度、自旋速率、章动角及偏航等外弹道参数进行综合测量。它经过严格的空间位置标定,具有统一的时间基准,由微机控制实现对各摄影机的实时控制。大量试验表明,该系统对飞行弹丸测速精度为千分之一;自旋速率测量误差小于百分之一;章动角测量误差为6[角]分,偏航误差为1.5毫米。 The basic system of slit linkage photography outside ballistic test uses multiple slit high-speed cameras to make joint measurements of the ballistic velocities, spin velocities, nutation angles and yaw of the projectile. It has been rigorously calibrated in space, with a unified time base, controlled by the computer to achieve real-time control of the cameras. A large number of tests show that the system of flight projectile velocity accuracy of one thousandth; spin rate measurement error of less than one percent; nutation angle measurement error of 6 [angle] points, yaw error of 1.5 mm.