The framework of the virtual laser tracker: a systematic approach to the assessment of error sources and uncertainty in laser tracker measurement.

Huo, Dehong, Maropoulos, Paul and Cheng, Chun Hung (2010) The framework of the virtual laser tracker: a systematic approach to the assessment of error sources and uncertainty in laser tracker measurement. In: Proceedings of the 6th CIRP-Sponsored International Conference on Digital Enterprise Technology. Huang, George, Maropoulos, Paul and Mak, K. L., eds. Advances in Intelligent and Soft Computing (66) . Springer, Berlin, pp. 507-523. ISBN 9783642104305. [Book Section] (doi:10.1007/978-3-642-10430-5_39)

Abstract

Laser trackers have been widely used in many industries to meet increasingly high accuracy requirements. In laser tracker measurement, it is complex and difficult to perform an accurate error analysis and uncertainty evaluation. This paper firstly reviews the working principle of single beam laser trackers and state-of-the-art of key technologies from both industrial and academic efforts, followed by a comprehensive analysis of uncertainty sources. A generic laser tracker modelling method is formulated and the framework of the virtual tracker is proposed. The VLS can be used for measurement planning, measurement accuracy optimization and uncertainty evaluation. The completed virtual laser tracking system should take all the uncertainty sources affecting coordinate measurement into consideration and establish an uncertainty model which will behave in an identical way to the real system.

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