工业CT四轴运动控制系统的实现及误差分析  

Implementation and Error Analysis of Industrial CT Four Axis Motion Control System

作　　者：方登富[1] 李公平[1] 潘小东[1] 王东[1] 

机构地区：[1]兰州大学核科学与技术学院,甘肃兰州730000

出　　处：《甘肃科学学报》2015年第2期1-5,共5页Journal of Gansu Sciences

基　　金：兰州大学自然科学类中央高校基本科研专项(860452)

摘　　要：锥束工业CT机械运动控制系统的稳定性以及运动误差对图像重建有着很大的影响。为了保证图像重建的质量,在项目中搭建了四轴运动控制平台,并基于VC++6.0包含的MFC对锥束CT机械运动控制系统进行了界面开发。通过多人多次实验对运动控制系统的定位误差进行了检测,同时模拟了不同轴的定位误差对图像重建的影响。实验结果表明它的稳定性较好,运动误差保持在15μm以内。水平运动轴的定位误差对图像重建影响较小,升降运动轴误差较大时对重建图像影响较大,旋转轴的定位误差对重建图像影响比较大,实验中应尽可能地减小定位误差。The stability of the cone-beam industrial CT motion-control system and the motion deviation have a great influence on image reconstruction in the system.Aimed at the guarantee of reconstructed image quality,a four-axis control motion platform was constructed and a control interface based on the MFC of VC＋＋6.0was developed.The position deviation of the motion control system was repeatedly tested and the influence of different axis positioning error on image reconstruction was simulated.The experimental results showed that the system had great stability and its positioning error maintained within 15μm.The positioning error of lifting and spinning movement had a great influence on image reconstruction,and therefore the location error in the experiment had to be reduced as far as impossible.

关 键 词：锥束工业CT ART算法 机械运动控制系统 误差范围 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]