Design and uncertainty of an opto-mechanical device for checking CMM touch trigger probes
This paper presents aspects of design of a test apparatus for checking touch trigger probes. It describes the probe test rig whose main objective is to check the probe repeatability and pre-travel variation (lobing effects). The results indicate that such a verification has been achieved with the additional advantage of testing the probe independent of the CMM error sources. The paper details the design characteristics of such a system for which the combined uncertainty is computed. Finally, it concludes that its accuracy is good enough for CMM probe performance verification.
KeywordsCMM probe probe performance verification probe test rig touch trigger probe
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