摘要
采用CMOS图像匹配传感器实现对圆形工件几何尺寸(同心度)的非接触测量.选用OV7670、FPGA、TFT和触摸屏构成系统硬件主要部分,通过编程实现硬件驱动.选用三点定圆法和数像素点法的测量原理,编程实现数字图像处理算法和圆匹配.测量误差在可控范围内,实现了对圆度的非接触测量.
Thegeometry size of circular workpiece（concentricity） was measured non-contactedly by matching CMOS image sensor. Selection OV7670, FPGA, TFT and touch screen consisted of the main part of the system hardware which was drivedby programming. The three-points fixed circle method and pixels law were selected as measuring principle, the digital image processing algorithms and circle matching were achieved by programm. The non-contacted measurement of roundness could be realized with errors in manageable.
出处
《广东技术师范学院学报》
2015年第2期17-20,44,共5页
Journal of Guangdong Polytechnic Normal University
