Research on the influence of background light on the accuracy of a three-dimensional coordinate measurement system based on dual-PSD
ISSN: 0264-4401
Article publication date: 18 June 2020
Issue publication date: 27 January 2021
Abstract
Purpose
The purpose of this paper is to analyze the measurement error of a three-dimensional coordinate measurement system based on dual-position-sensitive detector (PSD) under different background light.
Design/methodology/approach
The mind evolutionary algorithm (MEA)-back propagation (BP) neural network is used to predict the three-dimensional coordinates of the points, and the influence of the background light on the measurement accuracy of the three-dimensional coordinates based on PSD is obtained.
Findings
The influence of the background light on the measurement accuracy of the system is quantitatively calculated. The background light has a significant influence on the prediction accuracy of the three-dimensional coordinate measurement system. The optical method, electrical method and photoelectric compensation method are proposed to improve the measurement accuracy.
Originality/value
BP neural network based on MEA is applied to the coordinate prediction of the three-dimensional coordinate measurement system based on dual-PSD, and the influence of background light on the measurement accuracy is quantitatively analyzed.
Keywords
Acknowledgements
The research was supported by the National Natural Science Foundation of China under Grant No. 51875080, the Fundamental Research Funds for the Central Universities under Grant No. DUT20ZD204 and Liaoning Natural Science Foundation Project under Grant No. 2019-MS-038. The financial contributions are gratefully acknowledged.
Citation
Lu, X., Zhou, Y., Qiao, J., Luan, Y. and Wang, Y. (2021), "Research on the influence of background light on the accuracy of a three-dimensional coordinate measurement system based on dual-PSD", Engineering Computations, Vol. 38 No. 1, pp. 242-265. https://doi.org/10.1108/EC-02-2020-0081
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited