The model for estimating the measurement error in geometric parameters of complex surfaces

Abstract

The measurement results for the geometric parameters of complex surfaces largely depend on the measurement parameters. The different processing algorithms for measurement results implemented in the coordinate measuring machine software gives different values for the mentioned parameters. In this paper, a model for estimating the measurement errors in the geometric parameters of complex surfaces caused by the use of different result processing tools is considered. The represented work consists of several stages: development of surfaces with a known deviation of form and location, simulation of the coordinate measurement process, calculation of target parameters in software of coordinate measuring machines and analysis of simulation results. The model was tested through the example of determining the measurement error in the involute surfaces of tooth wheels. The represented model may be used to determine the optimal measurement parameters for geometric parameters of complex surfaces.