The subject has designed a bullet velocity measure system with a variety of intelligent functions for velocity measurement coil and projectile, which combines the USB communication technology and bullet initial velocity testing technology.

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.

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.

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.

A reflecting laser velocimetry for measuring the projectile velocity is designed.

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.

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.