Uncertainty evaluation of CMM by modeling with spatial constraint in error

M. Abbe, M. Nara, K. Takamasu
Abstract:
A noble simulation method for evaluating task specific uncertainty in coordinate metrology is proposed. Provided that specification or test result conforming to ISO 10360-2 is available, both variance of point coordinates and covariance expressing the mutual influence is handled to perform Monte Carlo simulation reflecting spatial constraint in error of CMM. Development and implementation of the over all procedures are pursued to apply them on real CMM. Comparison result between uncertainties obtained by the proposed method and that by experimental measurements shows good agreement. However the worst shows 1 μm over-estimated, and the functionality and the characteristic of ease to use are validated.
Keywords:
CMM; uncertainty; modeling; simulation
Download:
IMEKO-TC14-2007-21.pdf
DOI:
-
Event details
IMEKO TC:
TC14
Event name:
TC14 ISMQC 2007
Title:

9th Symposium on Measurement and Quality Control in Manufacturing

Place:
Chennai/Madras, INDIA
Time:
21 November 2007 - 24 November 2007