Laser tracker position optimization

Z. Wang, A. Forbes, Paul Maropoulos

    Research output: Contribution to journalArticle


    This article presents a laser tracker position optimization code based on the tracker uncertainty model developed by the National Physical Laboratory (NPL). The code is able to find the optimal tracker positions for generic measurements involving one or a network of many trackers, and an arbitrary set of targets. The optimization is performed using pattern search or optionally, genetic algorithm (GA) or particle swarm optimization (PSO). Different objective function weightings for the uncertainties of individual points, distance uncertainties between point pairs, and the angular uncertainties between three points can be defined. Constraints for tracker position limits and minimum measurement distances have also been implemented. Furthermore, position optimization taking into account of lines-of-sight (LOS) within complex CAD geometry have also been demonstrated. The code is simple to use and can be a valuable measurement planning tool.
    Original languageEnglish
    Pages (from-to)8-12
    Number of pages5
    JournalCMSC Journal
    Issue number1
    Publication statusPublished - 2014


    • metrology
    • laser tracker
    • uncertainty
    • optimization
    • modelling


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