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Double position sensitive detectors (PSDs) based measurement system of trajectory tracking of a moving target

Xiaohong Lu (Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, People’s Republic of China)
Zhenyuan Jia (Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, People’s Republic of China)
Xiaochen Hu (Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, People’s Republic of China)
Wentao Wang (Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, People’s Republic of China)

Engineering Computations

ISSN: 0264-4401

Article publication date: 2 May 2017

133

Abstract

Purpose

The purpose of this paper is to achieve the trajectory tracking measurement of a moving target based on double position sensitive detectors (PSDs).

Design/methodology/approach

In this paper, first, a double PSD-based measurement system including hardware system and software system is built up. Then, the working principle is studied to calculate parameters, and calibration experience is conducted. Finally, this double PSD-based measurement system is used to test angular displacement and axial displacement on the tool magazine and automatic tool changer.

Findings

In the experiment, the maximum position error of a space point based on double PSD measurement system is 0.8566 mm, and the average error is 0.4716 mm. These results show that the built double PSD-based measurement system of trajectory tracking of a moving target is reasonable.

Originality/value

Combining the characteristics of the PSD and principles of binocular visual measurement, a non-contact three-dimensional measuring system based on double PSDs is developed. The designed double-based measurement system is quite suitable for measurement of a fast-changing illuminant or in the case that the tracking accuracy is not tight.

Keywords

Acknowledgements

The research is supported by the high-grade CNC machine tool and the basic equipment manufacturing industry major science and technology project (No. 2011ZX04011-022).

Citation

Lu, X., Jia, Z., Hu, X. and Wang, W. (2017), "Double position sensitive detectors (PSDs) based measurement system of trajectory tracking of a moving target", Engineering Computations, Vol. 34 No. 3, pp. 781-799. https://doi.org/10.1108/EC-08-2015-0214

Publisher

:

Emerald Publishing Limited Bingley, United Kingdom

Copyright © 2017, Emerald Publishing Limited

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