Author(s)

K. wendt, H. schwenke, W. Bosemann & M. Dauke

Abstract

Large co-ordinate measuring machines (CMMs) are used for quality assurance in the automotive and aircraft industry. To monitor and calibrate these machmes, a new procedure based on the multi-lateration principle has been developed that uses only the hgh-precision interferometric length measurements of a single conventional laser tracker to create a "Virtual 2D-Artefact" (set of planar reference positions). The patent-pending procedure meets high accuracy requirements and does not require reference objects such as, for example, ball plates. 1 Introduction As CMMs are employed for quality assurance, they must to be calibrated and their performance and accuracy have to be verified at regular intervals. However, so far

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