Virtual CMM using Monte Carlo methods based on frequency content of the error signal

Bas W. van Dorp; Han Haitjema; Frank Delbressine; Robbert H. Bergmans; Piet H. J. Schellekens

doi:10.1117/12.445616

22 October 2001 Virtual CMM using Monte Carlo methods based on frequency content of the error signal

Bas W. van Dorp, Han Haitjema, Frank Delbressine, Robbert H. Bergmans, Piet H. J. Schellekens

Proceedings Volume 4401, Recent Developments in Traceable Dimensional Measurements; (2001) https://doi.org/10.1117/12.445616
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

In coordinate measurement metrology, assessment of the measurement uncertainty of a particular measurement is not a straight forward task. A feasible way for calculation of the measurement uncertainty seems to be the use of a Monte Carlo method. In recent years, a number of Monte Carlo methods have been developed for this purpose, we have developed a Monte Carlo method that can be used on CMM's that takes into account, among other factors, the auto correlation of the error signal. We have separated the errors in linearity errors, rotational errors, straightness errors and squareness errors. Special measurement tools have been developed and applied to measure the required parameters. The short-wave as well as the long-wave behavior of the errors of a specific machine have been calibrated. A machine model that takes these effects into account is presented here. The relevant errors of a Zeiss Prismo were measured, and these data were used to calculate the measurement uncertainty of a measurement of a ring gauge. These calculations were compared to real measurements.

Citation Download Citation

Bas W. van Dorp, Han Haitjema, Frank Delbressine, Robbert H. Bergmans, and Piet H. J. Schellekens "Virtual CMM using Monte Carlo methods based on frequency content of the error signal", Proc. SPIE 4401, Recent Developments in Traceable Dimensional Measurements, (22 October 2001); https://doi.org/10.1117/12.445616

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