摘要
针对靶场静爆试验中破片测速难题,提出了基于摄影测量技术的破片测速方法。以某枪弹为例,开展了测速试验,建立了测试系统,解决了测试现场高速相机布置及参数设定问题;研究了关键技术,通过解析高速相机捕捉的弹丸运动图像序列,还原了弹丸的运动轨迹方程,求解得到弹丸的飞行速度;并将试验结果与铝箔靶测得速度进行对比,相对速度误差小于1%。实例表明,该方法能够准确测量破片的运动速度,测试结果可靠,测量精度能够满足靶场试验要求。
It is difficult to measure the velocity of fragments in range static explosion test.Aiming at this problem,a novel method based on digital photogrammetry technology was put forward. Take some gun for instance,the speed test was carried out,and the test system was established. The problem of the layout and parameter settings of the high-speed camera was solved in the test field.By analyzing the image sequences of the bullet motion captured by high-speed cameras,the trajectory equation of the bullet was reduced,and the velocity of the projectile was obtained.The test result was compared to the aluminum foil target test result,and the relative velocity error is less than 1%.The instance shows that the fragment velocity can be accurately measured by the method,and the test result is reliable,which can meet the requirement of the range test.
出处
《弹道学报》
CSCD
北大核心
2015年第4期47-51,共5页
Journal of Ballistics
关键词
静爆试验
摄影测量技术
高速摄影
速度测量
图像处理
static explosive experiment
photogrammetry technology
high-speed photography
velocity measurement
image processing
