The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System

The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System

Light-pen coordinate measuring machines are widely used due to their portability; however, the measurement accuracy is affected by camera calibration, light-pen probe calibration, control points, etc. To study the influence of control point dispersion on measurement accuracy, a light-pen coordinate...

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Main Authors: Dongri Shan, Xiaodong Bi, Xiaofang Wang, Peng Zhang, Zhoufang Xu, Min Han, Yang Liu, Chenglong Zhang, Yalu Xu
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Light-pen coordinate measuring system
light-pen
control point distribution
control point dispersion
measurement accuracy
Online Access:https://ieeexplore.ieee.org/document/9427468/
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spelling doaj-c28f56d302f042cd9830ec77177f65d32021-06-02T23:16:51ZengIEEEIEEE Access2169-35362021-01-019760157602310.1109/ACCESS.2021.30792749427468The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring SystemDongri Shan0https://orcid.org/0000-0003-2340-596XXiaodong Bi1Xiaofang Wang2Peng Zhang3Zhoufang Xu4https://orcid.org/0000-0001-7660-1206Min Han5Yang Liu6Chenglong Zhang7Yalu Xu8School of Electronic and Information Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaSchool of Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaSchool of Electronic and Information Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaSchool of Electronic and Information Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaSchool of Electronic and Information Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaSchool of Electronic and Information Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaCollege of Instrumentation and Electrical Engineering, Jilin University, Changchun, ChinaSchool of Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaSchool of Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaLight-pen coordinate measuring machines are widely used due to their portability; however, the measurement accuracy is affected by camera calibration, light-pen probe calibration, control points, etc. To study the influence of control point dispersion on measurement accuracy, a light-pen coordinate measuring system is constructed in this paper. In this system, a new type of control point distribution is designed. Based on this distribution, five light-pens with different control point dispersions are created and an algorithm is proposed to match control points with their images. The experimental repeatability results for the five light-pen probes indicate satisfactory repeatability, which ensures the effectiveness of the measurement results. The experimental measurement results for five light-pens demonstrate that the measurement error decreases with the decline of the control point dispersion at first, but begins to increase when the control point dispersion reaches a certain value.https://ieeexplore.ieee.org/document/9427468/Light-pen coordinate measuring systemlight-pencontrol point distributioncontrol point dispersionmeasurement accuracy
collection DOAJ
language English
format Article
sources DOAJ
author Dongri Shan
Xiaodong Bi
Xiaofang Wang
Peng Zhang
Zhoufang Xu
Min Han
Yang Liu
Chenglong Zhang
Yalu Xu
spellingShingle Dongri Shan
Xiaodong Bi
Xiaofang Wang
Peng Zhang
Zhoufang Xu
Min Han
Yang Liu
Chenglong Zhang
Yalu Xu
The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System
IEEE Access
Light-pen coordinate measuring system
light-pen
control point distribution
control point dispersion
measurement accuracy
author_facet Dongri Shan
Xiaodong Bi
Xiaofang Wang
Peng Zhang
Zhoufang Xu
Min Han
Yang Liu
Chenglong Zhang
Yalu Xu
author_sort Dongri Shan
title The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System
title_short The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System
title_full The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System
title_fullStr The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System
title_full_unstemmed The Impact of Control Point Dispersion on Measurement Accuracy in a New Type of Light-Pen Coordinate Measuring System
title_sort impact of control point dispersion on measurement accuracy in a new type of light-pen coordinate measuring system
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2021-01-01
description Light-pen coordinate measuring machines are widely used due to their portability; however, the measurement accuracy is affected by camera calibration, light-pen probe calibration, control points, etc. To study the influence of control point dispersion on measurement accuracy, a light-pen coordinate measuring system is constructed in this paper. In this system, a new type of control point distribution is designed. Based on this distribution, five light-pens with different control point dispersions are created and an algorithm is proposed to match control points with their images. The experimental repeatability results for the five light-pen probes indicate satisfactory repeatability, which ensures the effectiveness of the measurement results. The experimental measurement results for five light-pens demonstrate that the measurement error decreases with the decline of the control point dispersion at first, but begins to increase when the control point dispersion reaches a certain value.
topic Light-pen coordinate measuring system
light-pen
control point distribution
control point dispersion
measurement accuracy
url https://ieeexplore.ieee.org/document/9427468/
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