基于大靶面光幕靶的两类六光幕阵列测量原理

Measurement Principle for Two Kinds of Six-light-screen Array Composed by a Large Area Light Screen

弹丸着靶坐标和飞行速度以及飞行方向角是外弹道测试中必测参数,本文针对四幕光幕靶和双光幕测速系统的不足,采用六个大靶面光幕靶,构造出了两类六光幕阵列结构。由作者首次提出的六幕光幕靶是文中所提基本结构的变形。所提六光幕阵列能同时完成着靶坐标、速度和速度方向三类参数的同时测试,是一类六光幕阵列的基本机构,其他结构可以通过光幕面的旋转平移得到。文中给出了两种六光幕阵列测量公式的详细推导。提出的六光幕阵列也可以用作自动报靶系统中的传感器。

Positions impacting on a virtual plane on trajectory, flying velocity, and the flying direction angle of velocity, which are the parameters of flying projectiles in ballistic trajectory, must be measured in ranger. Because of drawback of four-screen measuring system and two-screen velocity measuring method, an improved six-light-screen array is presented that is composed of six large area light screens. The six-light-screen array presented at -the first time can be shaped by changing a position of one light screen in the present basic six-light-screen array. Two kinds of arrays can measure synchronously all above parameters of flying projectiles. They are basic arrays and other different arrays can be obtained by rotating and shifting the different light screens. The principle of measurement is described in the paper, And the derived process of measurement formula is given in detail. The presented six-light-screen array can be used as a sensor in automatic target-reading systems,