弹丸卡膛速度测量系统设计与测试

卡膛速度是弹丸装填的重要参数,对弹丸卡膛的一致性有较大影响,进而对火炮射击精度产生影响.提出了一种基于激光位移传感器的弹丸卡膛速度测试方法,并根据已有的弹药自动装填装置试验台架对测试方法进行了试验和验证.利用激光位移传感器测量弹丸在30°、45°和60°射角下卡膛时段的位移变化,通过Matlab软件对弹丸在身管内的位移...

Design and Test of Measuring System for Projectile Bayonet Velocity

The bayonet velocity is an important parameter for projectile loading,which has a greater influence on the consistency of projectile bayonet,and then affects the firing accuracy of the gun.A test method of projectile bayonet velocity based on laser displacement sensors was proposed,and the test method was tested and validated according to the existing test bench of automatic ammunition loading device.The laser displacement sensor was used to measure the displacement changes of the projectile at 30°,45° and 60° firing angles.The displacement-time curve of the projectile in the barrel was differentiated by Matlab software to obtain the velocity-time curve of the projectile bayonet period.The velocity suddenly dropped to zero where the projectile reached the position of the bayonet,and the bayonet velocity could be obtained according to the velocity change of the projectile.The error analysis of the measured bayonet velocity shows that the method can be used to measure the bayonet velocity of projectiles and has high accuracy.