1) velocity measurement of projectile
弹丸测速
1.
For the velocity measurement of projectile of the traditional process,a new electrical chronome- ter of intelligence and high precision with MCU and FPGA is designed in this paper.
针对传统过程的弹丸测速方法,利用单片机和FPGA设计了一种智能化高精度弹丸测时仪,与天幕靶、光幕靶等区截装置配合,实现了多路通道同时对单发或连发弹丸速度的自动测定、显示、保存和打印等功能。
2.
The method of velocity measurement by using zone-block device as a general method of velocity measurement in the modern range, electrical chronometer is the main component of the system of velocity measurement by zone-block , which performs the reliability and precision of velocity measurement of projectile.
区截装置测速法是现代靶场中弹丸测速的普遍方法,测时仪作为区截装置测速系统的主要组成部分,其性能直接影响弹丸测速的可靠性和精度。
2) velocity measure instrument
弹丸测速仪
5) projectile velocity measurement
弹丸速度测试
1.
In order to improve accuracy of projectile velocity measurement and anti-jamming capability,a system of laser screens for velocity measurement with photoelectric DC compensation was presented.
为了提高弹丸速度测试的精度和抗干扰能力,提出了一种基于光电直流补偿的激光测速靶系统设计。
6) projectile velocity
弹丸速度
1.
A reflecting laser velocimetry for measuring the projectile velocity is designed.
该系统不仅可以测量气体炮弹丸的着靶速度,而且还可以测量弹丸速度在碰撞过程中的连续变化。
2.
In this article, we use the approximate formula abtained to analyze the relation of projectile velocity with obliquity of trajectory during a section of time after the trajectory top quantitatively.
运用近似公式定量分析过弹道顶点后一段时间内弹丸速度和弹道倾角之间的规律 ,解决了以往只能定性分析而不能定量分析的难题 。
3.
According to the limitation of traditional method for measuring projectile velocity,this paper proposes a new technology for measuring projectile velocity which is combined with digital laser screen and a cross-correlation velocity measurement algorithm.
针对传统弹丸速度测量方法的局限,提出一种新的弹丸速度测试技术——数字化激光幕结合互相关速度测量算法的测试技术,并给出了激光总体测速方案、测速原理以及互相关测速方法,经靶场试验验证测试效果良好。
补充资料：测速发电机
| 测速发电机 tachogenerator 输出电动势与转速成比例的微特电机。测速发电机的绕组和磁路经精确设计，其输出电动势E和转速n成线性关系，即E＝kn，其中k是常数。改变旋转方向时输出电动势的极性即相应改变。当被测机构与测速发电机同轴联接时，只要检测出输出电动势，即能获得被测机构的转速，故又称速度传感器。测速发电机广泛应用于各种速度或位置控制系统。在自动控制系统中作为检测速度的元件，以调节电动机转速或通过反馈来提高系统稳定性和精度；在解算装置中可作为微分、积分元件，也可作为加速或延迟信号用或用于测量各种运动机械在摆动或转动以及直线运动时的速度。测速发电机分为交流和直流两种。 |
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