用面阵CCD检测工件平面运动参数  

Study on Measuring the Motion Parameters of Workpiece in Plane Motion with Area CCD

作　　者：杨世明[1] 秦威[1] 

机构地区：[1]天津工业大学机械电子学院,天津300160

出　　处：《上海交通大学学报》2008年第S1期103-106,共4页Journal of Shanghai Jiaotong University

摘　　要：在一些焊接过程中,需要测量作平面运动工件上点的位置、位移、速度和工件的角位移、角速度.对利用面阵CCD测量作平面运动工件运动参数的方法进行了研究.用面阵CCD获得了带有2个标记的工件运动信息的时变序列图像.采用阈值为一个范围的改进二值化方法,对采集的图形进行二值化处理.确定了在比较复杂背景中提取标记的代数运算方法和离散干扰点的判别准则.对提取出的2个标记进行分割,确定标记形心的坐标和工件的角位移,并通过数值方法计算出标记形心的速度和工件的角速度.实验结果与用其他传感器获得的结果比较吻合.In some welding process,it is needed to determine the position,displacement and velocity of certain points on the workpiece in plane motion and angular displacement,angular velocity of the workpiece.A new method was investigated to measure the motion parameters of workpiece in plane motion with an area CCD.Time-varying images of a workpiece with two markers were collected by an area CCD.The images are binarized by using the threshold value which is a range.An algebraic operation method was determined to ext...

关 键 词：面阵CCD 平面运动 二值化 数值方法 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]