炮口振动位移高速数字摄像法测试技术研究

Study on Measurement Technique of Muzzle Vibration Displacement with High-speed Digital Imaging Method

为了验证高速数字摄像法在炮口振动位移测试中的应用效果,以完善炮口振动位移测试方法,开展了炮口振动位移高速数字摄像法测试技术的研究.本文用电涡流位移传感器和高速数字摄像系统同时测试射击时的炮口振动位移,将二者结果进行对比,以此评价高速数字摄像法的应用效果.在炮口布置测试运动标识,高速数字摄像系统布置在火炮侧面,图像测试结果记录在计算机磁盘上,采用高速运动分析软件处理炮口振动位移曲线.结果表明,炮口振动位移高速数字摄像测试法测试结果与电涡流位移传感器测试结果曲线形状和数值基本一致,二者相对误差小于1%,故高速数字摄像测试法能满足火炮测试精度要求.

In order to validate the application effect of high speed imaging method for the muzzle displace -ment measurement and to perfect the measurement method of muzzle vibration displacement ,the research of measurement technology was developed .The measure result of the muzzle vibration displacements is compared with the eddy current sensor and high speed imaging system ,validate the application effect of high speed im-aging method with the compare result ,arrange the measurement indicator on muzzle and place the high speed imaging system on the gun side .Then the imaging measurement results are recorded in computer disk and the curves of muzzle vibration displacement are processed by the analysis software of high speed motion .The re-sults show that the curves profile and values are consistent by comparing the eddy current sensor and high speed imaging system .The relative error is less than 1% .The measurement results of high speed imaging sys-tem can satisfy the requirements of gun measurement precision .