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Proceedings Paper

Analysis of angle measurement uncertainty for wMPS
Author(s): Lei Geng; Jigui Zhu; Xueyou Yang; Zhi Xiong
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Paper Abstract

Workspace Measurement Position System (wMPS) is a newly developed laser based measuring system for large scale metrology. Initially, theoretical definition of metrology process models of wMPS is described and uncertainties are propagated from internal parameters using Monte Carlo simulation in which uncertainty decreases with sampling duration. Angular uncertainty is affected by internal parameters pointed out by mathematical model and experiments are then carried out to determine the actual uncertainty in the azimuth and elevation in order to select appropriate parameters to design the measuring system. Experiment results reveal that wMPS has the ability of accurate measurement for large volume and the uncertainty is less affected by the working volume. Measuring results shows wMPS designed based on the parameters achieves relative high measuring precision.

Paper Details

Date Published: 28 December 2010
PDF: 8 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 754403 (28 December 2010); doi: 10.1117/12.885389
Show Author Affiliations
Lei Geng, Tianjin Univ. (China)
Tianjin Polytechnic Univ. (China)
Jigui Zhu, Tianjin Univ. (China)
Xueyou Yang, Tianjin Univ. (China)
Zhi Xiong, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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