基于图像处理技术的钢卷尺检定装置测量分析
Analysis of steel tape measuring device based on image processing technology
李青 1邱江月 2王晶 1李元耀 1李凌梅1
作者信息
- 1. 天津市计量监督检测科学研究院,天津 300192
- 2. 天津市东丽区计量检定所,天津 300000
- 折叠
摘要
针对传统钢卷尺检测过程中在自然环境下对人工依赖大的问题,设计了一种基于图像处理技术的自动检定钢卷尺装置,装置由视觉采集单元、控制单元和数据处理单元三部分构成,通过软件程序自动控制视觉采集单元采集图像数据,进行图像预处理,提取出图像检测区域,进行阈值分割后,确定线纹检测位置,最终计算出被检钢卷尺与标准钢卷尺测量位置的示值误差.依据测量不确定度评定模型,计算不确定度分量,得到示值误差的扩展不确定度U=0.06mm,k=2.装置通过自动处理数据将有效提高检测速度,提高检测准确度,减轻工作强度.
Abstract
Aiming at the problem of high dependence on manual labor in the traditional steel tape detec-tion process in natural environment,a steel tape automatic calibration device based on image processing technology is designed.The device consists of a visual acquisition unit,a control unit,and a data pro-cessing unit.The visual acquisition unit is automatically controlled by a software program to collect image data,perform image preprocessing,extract the image detection area,and perform threshold segmenta-tion,Determine the position for line pattern detection,and finally calculate the indication error between the measured position of the tested steel tape and the standard steel tape.Based on the measurement un-certainty evaluation model,calculate the uncertainty component and obtain the expanded uncertainty of indication error U=0.06 mm,k=2.The device will effectively improve detection speed,accuracy,and reduce work intensity through automatic data processing.
关键词
图像处理技术/钢卷尺/检定/不确定度Key words
image processing technology/steel tape/verification/uncertainty引用本文复制引用
出版年
2024
NETL
NSTL
万方数据