大型弹体发射速度测量方法的研究

Research on the Measurement Method of Shooting Speed of Large Size Object

大型弹体的发射速度是各种弹体飞行控制中的重要参数。由于弹体尺寸大、发射时间短等原因 ,因而对发射速度的快速实时测量难于保证精度。本文提出一种“双测头光电反射式速度测量系统”,它采用“双路平衡式光电传感系统”接收信号 ,可实现各种大型物体 (如导弹、火箭 )的发射速度测试 ,在 0～ 50 m/s内 ,其相对误差小于 1 % ,且安装调试方便。

The measurement of shooting speed of a large size object is difficult because of the great size and short shooting time. A new double sensor reflecting photoelectric measuring system for shooting speed of the large size object, such as missile and rocket was presented in this paper, and the relative error of the system would be less than 1% in the range of 0～50m/s. The balance photoeletric sensing structure of double channel is also used in this system. It is predicted that the method is available for practical measurement.