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视觉测量精度能达到多少决定了视觉检测系统的使用范围

浏览量
  视觉测量精度能达到多少是判断一个视觉检测系统技术成功与否的关键因素。在视觉检测系统技术测量项目中,很多客户会遇到一些因为检测精度不够而造成的困扰。如何判断出机器视觉检测技术测量精度的多少呢?
  The accuracy of vision measurement is the key factor to judge whether a visual inspection system is successful or not. In the technical measurement project of visual inspection system, many customers will encounter some problems caused by insufficient detection accuracy. How to judge the accuracy of machine vision inspection technology?
  视觉检测系统在完成设计之后,都要进行测试,才能确定能不能检这个与你要检测的零件尺寸大小,与所使用的相机解析率,以及软件的算法能达到的精度。你能将需要检测的东西成像清楚,需要检测的边界有正确明显的色差才有可能实现。
  After the completion of the design of the visual inspection system, it is necessary to test to determine whether it can check the size of the parts you want to detect, the resolution rate of the camera used, and the accuracy of the software algorithm. You can image things that need to be detected clearly. Only when the boundary needs to be detected has correct and obvious color difference, can it be realized.
视觉测量精度能达到多少
  例如:检测加工零件的外形尺寸、内外径,要求精度到10um。目前很多配置选择500万的相机,理论上是可以达到10um的精度的。可实际客户测试的精度远远达不到10um的要求,能做到30um就很不错了。
  For example: to detect the overall dimension, inside and outside diameter of machining parts, the accuracy is required to be 10um. At present, many configurations choose 5 million cameras, which can theoretically reach the accuracy of 10um. But the accuracy of the actual customer test is far less than the requirement of 10um, it is very good to be able to do 30um.
  要检测的零件尺寸大小,与所使用的相机分辨率,以及软件的算法能达到的精度都有关系,当然,首先是你能将需要检测的东西成像清楚,需要检测的边界有正确明显的色差才有可能实现。
  The size of the parts to be tested is related to the resolution of the camera used and the accuracy of the software algorithm. Of course, the first thing is that you can clearly image what needs to be detected, and the boundary that needs to be detected has correct and obvious color difference.
  一般来说,零件在图像中的视野越大,相机的分辨率越高以及检测到的边界越清晰,检测精度越高。在产品视野合适,拍摄效果好的情况下,红宝自动化视觉检测系统检测工件尺寸的精度可达一丝以内。
  Generally speaking, the larger the field of view of the part in the image, the higher the resolution of the camera and the clearer the detected boundary, the higher the detection accuracy. When the product vision is suitable and the shooting effect is good, the accuracy of Hongbao automatic visual inspection system to detect the workpiece size can reach less than one trace.
  基于机器视觉检测系统技术的检测系统具有成本低、精度高、安装简易等优点。再加上功能强大的视觉软件,易于调整,灵活方便,且测量数据可存储,便于建立统计分析,便于快速发现问题,解决问题,是行业检测技术的不二之选。
  The detection system based on machine vision technology has the advantages of low cost, high precision and easy installation. Combined with powerful visual software, it is easy to adjust, flexible and convenient, and the measurement data can be stored, which is convenient to establish statistical analysis, to quickly find problems and solve problems, which is the best choice of industry detection technology.