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Optical Engineering

Transmitter parameter calibration of the workspace measurement and positioning system by using precise three-dimensional coordinate control network
Author(s): Ziyue Zhao; Jigui Zhu; Jiarui Lin; Linghui Yang; Bin Xue; Zhi Xiong
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Paper Abstract

The workspace measurement and positioning system is a three-dimensional (3-D) coordinate system based on laser scanning, which is widely applied in large-scale metrology. As a core part ensuring measurement accuracy, the transmitter parameters’ calibration is the critical technique of the system. The present transmitter parameter calibration method relies on auxiliary measurement equipment, which is more error prone and less efficient. This paper will focus on the improvement of the transmitter parameters’ calibration by using a highly precise 3-D coordinate control network. Several calibration points with known coordinates are set in the workspace to establish the precise 3-D coordinate control network. After the new model of transmitter parameter calibration has been explained, both the calculation method for optimization and the production of the initial iteration value are given. As indicated by the results of the verifying experiment, the accuracy and efficiency of the transmitter calibration can be distinctly improved by using the proposed method. The experimental data show that the 3-D coordinate measurement error has obviously decreased from 0.3 to 0.15 mm as a merit of the proposed method.

Paper Details

Date Published: 15 August 2014
PDF: 8 pages
Opt. Eng. 53(8) 084108 doi: 10.1117/1.OE.53.8.084108
Published in: Optical Engineering Volume 53, Issue 8
Show Author Affiliations
Ziyue Zhao, Tianjin Univ. (China)
Jigui Zhu, Tianjin Univ. (China)
Jiarui Lin, Tianjin Univ. (China)
Linghui Yang, Tianjin Univ. (China)
Bin Xue, Tianjin Univ. (China)
Zhi Xiong, Hubei Univ. of Technology (China)

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