1) grating screen
光栅光幕
2) grating light screen
光栅光幕靶
1.
In order to measure the projectile velocity and coordinate of impact points in development of weapon firing rate system at the same time,the method to shape grating light screen by intersecting parallel laser beams was adopted.
为了在武器速射系统研制中同时测量弹丸速度和弹着点坐标,采用平行点激光光束交叉形成光栅光幕靶,以PCI总线构成数据采集系统,采集64路数字信号,通过分析连发弹过靶信号,提取各个弹丸过靶位置判别值以及过靶时刻。
3) Optical Screen
光幕
1.
A kind of Radioactivity Monitor System with Vehicle Contour Acquisition Module based on Optical Screen is developed.
研制了一套带有基于光幕的车辆轮廓采集模块的放射性物质监测系统,该系统能降低待检车辆在通过监测系统时对探测器造成的屏蔽效应,提高了系统的报警灵敏度。
4) screen
[英][skri:n] [美][skrin]
光幕
1.
Principle and analysis of high altitude projectile location measurement using multi-screen target method
多光幕法测量高空弹丸炸点坐标原理与分析
2.
A photo detector used in the separated laser trigger screen and a corresponding signal processing circuit are designed.
半导体激光光源经准直、扩束形成激光光幕 ,再经距光幕一定距离 ( 3～ 5m)外的具有原向反射特性的微珠玻璃屏反射回来后经球面反射镜的会聚由光电探测器接收 。
5) light screen
光幕
1.
The data acquired are analyzed and processed by the arithmetic program,then the flying time t1,t2,t3,t4 of the bullet through the light screens can be calculated.
为了能够实现弹道高度的自动化测量,用天幕靶对应的四个光幕面在空中形成具有一定几何关系的光幕阵,弹丸以一定的角度穿过天幕靶对应的四个光幕面时,数据采集仪采集四个天幕靶输出的弹丸模拟信号,并用相应的算法对信号进行处理和分析,得到弹丸穿越四个光幕的时刻值t1,t2,t3,t4,根据这些时间间隔和系统的结构参数求出弹丸撞击光幕面对应点距离地面的高度。
6) laser screen
激光光幕
1.
A novel laser screen method with retroreflector for velocity measurement is introduced for some special velocity measuring occasions like wide spreading range or large caliber projectiles.
为满足弹道散布范围大或大口径弹丸的测速场合,提出了一种原向反射式激光光幕测速的方法。
2.
When flying objects with high speed pass through the laser screen,change of light flux is transformed into electronic signal and sampled by data sampling card and pr.
针对弹道散布范围大或被测飞行物体尺寸大的测速场合,介绍了一种实现大面积有效靶区激光光幕速度测量的方法。
3.
The principle of the system is laser screen cutting: when the object moving laser screen,its velocity is gained using of acquiring optics flux.
该系统利用激光光幕区截原理:即当运动目标通过激光光幕时,采集光通量的变化从而获得运动目标的平均速度。
补充资料：送沈光赴福幕（一作送福州从事）
【诗文】：
泉齐岭鸟飞，雨熟荔枝肥。
南斗看应近，北人来恐稀。
潮浮廉使宴，珠照岛僧归。
幕下逢迁拜，何官着茜衣。
【注释】：
【出处】：
全唐诗：卷721-7
泉齐岭鸟飞，雨熟荔枝肥。
南斗看应近，北人来恐稀。
潮浮廉使宴，珠照岛僧归。
幕下逢迁拜，何官着茜衣。
【注释】：
【出处】：
全唐诗：卷721-7
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条