1) roll damping of projectile
弹丸自转角速度衰减
3) angular velocity decreasing
转速衰减
4) 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。
5) bullet velocity
弹丸速度
1.
Study of bullet velocity measurement system at any direction incidence;
斜入射弹丸速度测量系统研究
2.
The principle of bullet velocity measurement based upon the cross-correlation techniques is demonstrated.
论述了利用相关信号处理技术测量弹丸速度的原理,分析了数字采样的周期对测量误差的影响。
3.
A bullet velocity measuring system is composed of photoelectric target,microchip and PC is in- troduced and its operational principle as well.
介绍了用光幕靶、单片机和 PC 机组成的一套弹丸速度测试系统及该系统的工作原理;分析了单片机与 PC 机通讯时应注意的问题;编制了系统软件,并与“标准”测速系统进行了实际应用对比。
补充资料:地球自转角速度
rotational angular velocity of the earth
地球自转角速度:
地球本体绕通过其质心的旋转轴自西向东旋转的角速度。
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