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| The Design of Geometrical Parameters Measurement System |
| WANG Hong-tao1,HE Xiao-bo2,CHEN Qi3 |
1. College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing, Jiangsu 210016, China
2. China Aviation Powerplant Research Institute,Aviation Industry Corporation of China, Zhuzhou, Hunan 412000, China
3. Jiangsu Province Institute of Metrology, Nanjing, Jiangsu 210007, China |
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Abstract A novel system for measuring geometrical parameters of the measured object is designed by using machine vision and numerical control technology. In the system, the step motor is used to drive the two dimensional measuring table, the CCD camera and two grating rulers is used to acquire the outline coordinate data of the measured object, and a automatic contour tracking algorithm is executed in order to collect the complete data. The program for measuring and evaluating the straightness, roundness, parallelism and verticality is developed, as a result, the measurement of the geometrical parameters of the measured object is accomplished. The experiment results show that the designed system has high automation level, and its measuring accuracy reaches the micron degree.
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［1］邓善熙. 几何量测量自动化技术的回顾与展望［J］. 合肥工业大学学报(自然科学版), 2005, 28(9): 1192-1195.
［2］杨翠容, 范志浩, 黄河, 等. 多分辨率快速圆检测在抑菌圈测量系统中的应用［J］. 仪器仪表学报, 2007, 28(11): 2045-2051.
［3］刘凌云. 基于机器视觉的螺母垫圈分拣系统设计［J］. 湖北汽车工业学院学报, 2009, 23(2): 32-35.
［4］刘庆民, 赵玲, 吴欣. 圆锯片的CCD图像测量［J］. 计量学报, 2009, 30(5A): 103-106.
［5］刘庆民, 赵玲, 李国发. 滚珠螺母形位误差的CCD测量［J］. 计量学报, 2009, 30(5): 399-404.
［6］Lu R S, Li Y F, Yu Q. On-line measurement of the straightness of seamless steel pipes using machine vision technique［J］. Sensors and Actuators A, 2001(94): 95-101.
［7］张云辉, 谭庆昌, 田原嫄, 等. 基于数字图像处理测量直线度的方法研究［J］. 微计算机信息, 2008, 24(9): 203, 274-275.
［8］王卫东, 翟超, 陈柯. 机床主轴回转精度的CCD测量系统［J］. 计量学报, 2006, 27(1): 18-21.
［9］罗钧, 黄俊. 基于机器视觉的二维小尺寸精密测量系统［J］. 计算机测量与控制, 2007, 15(1): 11-13.
［10］李忠涛, 刘江, 孙观宏, 等. 阶梯轴尺寸及形位误差的机器视觉检测［J］. 工具技术, 2008, 42(2): 77-80.
［11］黎安兵, 王宏涛, 陈琪, 等. 基于机器视觉的几何量精密测量系统［J］. 传感器与微系统, 2009, 28(4): 99-101, 120.
［12］Bui S, Muralikrishnan B, Fu S Y, et al. Internet based software system for surface texture and form analysis［J］. Measurement, 2003 (33): 291-301.
［13］国防科工委科技与质量司. 几何量计量［M］. 北京: 原子能出版社, 2002.
［14］阮秋奇. 数字图像处理学［M］. 北京: 电子工业出版社, 2007. |
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2011, Vol. 32 
