Orientation parameters calibration of wMPS by using precise 3D coordinate control network

被引：0
|
作者：
Zhao Z. [1 ]
Zhu J. [2 ]
Yang L. [2 ]
机构：
[1] Beijing Changcheng Institute of Metrology & Measurement, Aviation Industry Corporation of China, Beijing
[2] State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2016年 / 45卷 / 11期
关键词：
Large-scale metrology; Laser scanning; Orientation parameters calibration; Precise 3D coordinate control network; wMPS;
D O I：
10.3788/IRLA201645.1117001
中图分类号：
学科分类号：
摘要：
The wMPS was a 3D coordinate system based on laser scanning, which was widely applied in large-scale metrology. The orientation parameters calibration was the critical technique of the system as it could solve the problem between the large measurement scale and high accuracy. This paper focused on a novel orientation parameter calibration method by using high precise three-dimensional coordinate control network after the mathematic model of the system was stated. Several calibration points with known coordinates were set in the workspace to establish the precise 3D coordinate control network. After the novel model of orientation parameters calibration had been explained, both calculation method for optimization and the produce of the initial iteration value were given. As indicated by the results of the verifying experiment, the accuracy and efficiency of the orientation calibration could be distinctly improved by using the proposed method. The experimental data show that the 3D coordinate measurement error is less than 0.15 mm as a merit of the proposed method. © 2016, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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页数：6
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