The 'Virtual CMM' a software tool for uncertainty evaluation - practical application in an accredited calibration lab

摘要

As a practicable method to evaluate measurement uncertainties for almost any measurement task on CMM PTB has developed the "VIRTUAL CMM" concept (VCMM). This method is based on Monte-Carlo simulations of the error behavior of a real CMM. Meanwhile the VCMM concept has been integrated in the software of two German CMM manufacturers and within the German Calibration Service (DKD) four laboratories are accredited to calibrate workpieces using this technique. FEINMESS as one of the accredited labs is presenting its practical experiences in this paper.