用于工业三维点测量的接触式光学探针

李磊刚; 梁晋; 唐正宗; 郭成; 胡浩

doi:10.3788/OPE.20142206.1477

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用于工业三维点测量的接触式光学探针

现代应用光学 | 更新时间：2020-08-13

- 用于工业三维点测量的接触式光学探针
- Optical and contact probe for industrial measurement of 3-D points
- 光学精密工程 2014年22卷第6期页码：1477-1485
- 作者机构：
  
  西安交通大学机械工程学院,陕西西安,710049
- 作者简介：
- 基金信息：
  
  国家科学自然基金资助项目（No.51275378，No.51275389）()
- DOI：10.3788/OPE.20142206.1477
  中图分类号： TH721;TP391
- 收稿日期：2013-09-29，
  
  修回日期：2013-10-24，
  
  纸质出版日期：2014-06-25
- 稿件说明：
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李磊刚, 梁晋, 唐正宗等. 用于工业三维点测量的接触式光学探针[J]. 光学精密工程, 2014,22(6): 1477-1485

LI Lei-gang, LIANG Jin, TANG Zheng-zong etc. Optical and contact probe for industrial measurement of 3-D points[J]. Editorial Office of Optics and Precision Engineering, 2014,22(6): 1477-1485
李磊刚, 梁晋, 唐正宗等. 用于工业三维点测量的接触式光学探针[J]. 光学精密工程, 2014,22(6): 1477-1485 DOI： 10.3788/OPE.20142206.1477.

LI Lei-gang, LIANG Jin, TANG Zheng-zong etc. Optical and contact probe for industrial measurement of 3-D points[J]. Editorial Office of Optics and Precision Engineering, 2014,22(6): 1477-1485 DOI： 10.3788/OPE.20142206.1477.

摘要

为了快速、准确地获得大尺寸工业产品或带有深槽孔工件的关键点三维坐标，本文基于工业近景摄影测量理论、立体视觉技术等，研究并实现了两种工业便携式、接触式光学探针测量系统。研究了测量系统涉及的探针设计、探针标定以及三维点解算等关键技术，设计了点阵式和手持相机式两种适用于不同工业场合的工业探针。针对点阵式探针的测量，提出了一种用于解算探针坐标系与世界坐标系相对关系的点云匹配方法。此外，采用拟合虚拟球的方法准确标定了两种探针的内部参数。最后，通过对比标准球与三坐标测量机的测量结果，得到系统的测量精度可达0.1 mm/m。该精度满足一般大、中型工件的三维点测量精度标准。

Abstract

To accurately obtain the 3-D coordinates of key points of large-size industrial products or some work pieces with deep holes

two kinds of optical

contact and portable probe systems were studied and implemented based on the theory of close-range photogrammetry and stereo vision technology. The key technologies applied in the systems were studied

including probe design

probe calibration and 3-D point reconstruction. Two kinds of probes

dot-matrix and hand-camera

were designed to apply to different industrial product measurements. Then

for the dot-matrix probe measurement

a point cloud registration method was proposed to solve the relationship beween probe coordinate system and world coordinate system. Besides

a method of fitting the virtual ball was used to calibrate two probes. Finally

four standard balls were measured in an accuracy test. The comparison results from three-coordinate measuring machine show that the measurement accuracy of the system can be up to 0.1 mm/m. It suggests that the system has met the general accuracy standards of the three-dimensional point measurement of medium and large sized products.

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Keywords

references

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