摘要
为了提高工件测量自动化程度和测量精度,设计了基于万能工具显微镜的非接触自动测量系统。对该系统所采用的图像去噪、边缘检测、亚像素定位等算法进行了研究;首先,在纵向和横向导轨上分别安装高精度光栅尺,用光栅信号采集卡采集纵向和横向光栅信号,经计算机数据处理获取被测物体测量尺寸整数部分;在工件检测目镜和纵向和横向读数目镜的位置上分别安装工件检测CCD和纵向和横向读数CCD,经过图像处理测得尺寸小数部分;然后,将两部分尺寸输入到AutoCAD中自动绘图标注显示最终测量结果。实验结果表明:该系统具有较高的测量精度,基本满足实际测量中快速、高精度的要求。
In order to improve workpiece measurement automation and accuracy, a non-contact automatic measurement system based on universal tool microscope was designed. System image denoising, edge detection, sub-pixel positioning algorithms have been studied; First, high- precision gratings were installed on the vertical and horizontal rails with the grating signal acquisition card collecting vertical and horizontal grating signal, and the computer data processing for the integer part of the measured object size measurement;. The workpiece detection eyepiece and eyepiece vertical and horizontal position readings were installed on the test piece and the vertical and horizontal readout CCD, image processing, the measured size after the fractional part; then, the final measurement results are marked with two dimensions from the drawing in AutoCAD display. Experimental results show that： the system has high precision, and the actual high-precision requirements of measurement are met.
出处
《光电子技术》
CAS
北大核心
2012年第4期258-262,共5页
Optoelectronic Technology
基金
安徽省高等学校优秀青年人才基金项目(2012SQRL151)
滁州学院科学研究项目(2011KJ017B)
关键词
万能工具显微镜
非接触
图像处理
边缘检测
universal tools microscope
non-contact
image processing
edge detection
