双天幕靶交汇测量弹丸飞行参数原理  

The principle for measuring motion parameters of projectiles using two sky screens in vertical intersection manner

作　　者：倪晋平[1] 宋玉贵[1] 冯斌[1] 

机构地区：[1]西安工业大学光电工程学院,西安710032

出　　处：《光学技术》2008年第3期388-390,394,共4页Optical Technique

基　　金：陕西省教育厅基金资助项目(03CJ31);中国兵器试验中心专项资助

摘　　要：提出了两种新型天幕靶的设计原理。采用敏感面较大的真空光电管、多狭缝光阑板以及标准光学照相镜头作为基本部件,将狭缝光阑板设计成"N"字和"三"字形,就可以分别构造出"N"字和"三"字形光幕。两台完全相同的天幕靶正交放置在弹道上,配合数据采集仪和计算机,依据数据采集仪记录的弹丸穿过各光幕的时间和光幕的几何参数,计算出弹丸的飞行参数。介绍了天幕靶的结构和光路设计以及测量原理,给出了测量公式。设计的天幕靶能够用于靶场,实现对弹丸速度、着靶坐标、飞行方向角的单项测量和多项同时测量。Two novel electro-optical sensors （EOSs） are put forward, which can be used to measure simultaneously the velocity, impact position, azimuth, elevation of projectiles in flight. Using vacuum phototube with a large sensitive area, multiple slots diaphragm, and standard lens as basic component, the N-shaped and ＂三＂-shaped light screens are generated with respective slots diaphragms. The measuring system have cooperated with the dada acquiring device and a computer-based controller, the flying parameters are measured with two completely identical sensors placed on a given point of ballistic trajectory in vertical intersection manner. The mechanical and optical structure as well as measuring principle is introduced. The measuring formula is introduced. The electro-optical sensors designed can be applied in ranger and to accomplish measuring the velocity, impact position, and angle-of-arrival individually or jointly.

关 键 词：天幕靶 光电探测器 弹丸 飞行参数 靶场测试 

分 类 号：TJ810.6[兵器科学与技术—武器系统与运用工程] TJ012.36