Photoelectric instrument of projectile muzzle velocity based on retro-reflective screen
This article presented a projectile muzzle velocity measuring instrument based on semiconductor laser retro-reflective screen and single chip microcomputer. The optical part of instrument includes two semiconductor lasers, two photoelectric detector, and two retro-reflective screens. The measuring principle, data acquisition unit ,signal processing unit, display unit are introduced. When the projectile passes through the laser screen, variation of light flux is transformed by photoelectric detector into electronic signal and processed by circuit Then, the single chip microcomputer system analyzes and calculates the signal. Finally, the velocity is shown on the LCD. A series of velocity data of 0120mm projectile are given. The velocity measurement instrument has advantages of high sensitivity, small volume, low cost, measurement, agility and reliable operation.
ZHAO Hui ZHAO Dong E WANG Gao
Key Laboratory of Instrumentation Science &Dynamic Measurement (North University of China),Ministry Key Laboratory of Instrumentation Science &Dynamic Measurement (North University of China),Ministry
国际会议
武汉
英文
146-149
2010-05-10（万方平台首次上网日期，不代表论文的发表时间）