1) light screen
光幕靶
1.
A method to measure the velocity of fragments of warhead with light screens;
战斗部破片速度光幕靶测量方法研究
2.
A digital circuit to filter interferential signals in light screen to measure velocity of flying bullet;
一种测速光幕靶的数字滤波电路设计
3) laser screen target
光幕靶
1.
This paper presents the thought of photo-electricity conversion and interruption and counter technology of single chip processor to acquire a set of portable bullet velocity measurement system based on laser screen target.
当弹丸通过光幕靶区时 ,将引起光幕强度的变化 。
2.
The contents include: the principle of laser screen target, A/D conversion, sampling theorem, Monolithic integrated circuit hardware and software and PC software designing.
具体内容包括:光幕靶的原理、A/D转换的原理、采样定理、单片机硬、软件和上位机软件的设计等。
4) optical screen
光幕靶
1.
A new design used in optical screen for measuring velocity of bullets;
一种抗光干扰光幕靶的设计与改进
2.
To solve the problem that the bullet speed measurement near the gunpoint is not able to obtain by the common optical screen because of light interference,a digital optical screen with resistance to light interference was proposed for bullet speed measurement.
为了解决光幕靶在使用过程中受干扰光影响无法测试距炮口较近处弹丸速度的问题,提出了一种数字化光幕靶分析方法,用于测试火光干扰较为严重条件下的弹丸速度。
3.
The velocity measuring system of the double projectiles based on the data acquisition card with the optical screens is put forward.
提出了一种基于数据采集卡配合光幕传感器的双头弹速度测试系统,详细地阐述了测量系统的组成与测量原理;采用相关算法分析双头弹穿过光幕靶传感器的输出信号,提高了弹丸时间间隔值求取精度。
5) six light screens
六幕光幕靶
1.
A measuring method for the initial velocity of fragment group with six light screens is presented in order to calculate the parameters of killing probability and the coordination between fuze and warhead.
针对计算战斗部杀伤概率和引战配合参数,提出一种六幕光幕靶对战斗部破片群初速进行测量的方法。
6) 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。
补充资料：靶扫描和靶重建
靶扫描和靶重建
影像学术语。CT检查中，对扫描野(SFOV)中某一兴趣区扫描时行较大矩阵重建的方式称靶扫描。在扫描及影像重建完成后，对显示野(DFOV)中某一兴趣区重新进行较大矩阵重建成像的方式称靶重建。前者是直接利用扫描野中兴趣区的较大量的原始数据进行影像重建，后者则是利用常规扫描中采集的原始数据进行兴趣区的影像重建。两种技术实现的基本前提都是一次扫描所获得的投影测量数据必须能够满足兴趣区影像重建矩阵所需的信息量。靶扫描在扫描前预先设定兴趣区，成像后不储存非兴趣区原始数据；靶重建则需储存层面扫描所获得的全部原始数据，占用较多的磁盘空间，但以后可在图像中任选兴趣区进行局部重建。两种技术在成像效果(空间分辨率，对比分辨率)上是一致的，这与单纯的局部图像放大(zoom)不同。后者没有增加兴趣区内像素数量，虽使影像扩大但分辨率并未提高，清晰度反有下降。
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