摘要
为解决因被测零件表面与相机光轴不垂直以及摆放位置不一致,导致单目测量精度低而被限制应用的问题,提出一种单目测量系统的配置方案。该方案将工作台面设计成台阶圆状,保证圆形零件边缘始终与台阶圆同一点相切,工作台面采用透明有机玻璃和背光源,提高圆形零件边缘成像清晰度。通过获取不同零件的成像直径,采用拟合方法得到测量系统模型。实验结果表明,测量数据与实际数据之间的相对误差不超过0.187%,能够满足实际工程测量的要求。
The surface of the part to be measured is not perpendicular to the optical axis of the camera and the placement position is inconsistent,which leads to low monocular measurement accuracy and limits its application.In this paper,a configuration scheme of monocular measuring system is proposed.The worktable is designed into a step circle to ensure that the edge of a circular part is always tangent to the same point of the step circle in the configuration scheme.The work table of transparent plexiglass and backlight are adopted to improve the edge imaging definition of circular parts.By obtaining the imaging diameters of different parts,the measurement system model is obtained by fitting method.The experimental results show that the relative error between the measured data and the actual data is less than 0.187%,which can meet the requirements of actual engineering measurement.
作者
尹珺瑶
朱兴龙
Yin Junyao;Zhu Xinglong(College of Mechanical Engineering, Yangzhou University, Jiangsu Yangzhou, 225127, China)
出处
《机械设计与制造工程》
2021年第9期53-57,共5页
Machine Design and Manufacturing Engineering
基金
江苏省自然科学基金面上项目(BK20171287)
国家自然科学基金资助项目(51475409)。
关键词
单目视觉
直径检测
解析模型
圆形零件
monocular vision
diameter detection
analytical model
circular parts
