Methodology of analytical estimation of uncertainty of coordinate measurements

W. Jakubiec
Abstract:
The paper presents the methodology of analytical estimation of coordinate measurement uncertainty. The underlying assumption of this methodology is, that a measuring task is an indirect measurement, where measurands are not coordinates but differences of coordinates. The model used for analysis takes into account geometrical errors, kinematics and dimensions of the machine. The author defined the functions expressing maximum values occurring for differences of particular geometrical errors. The paper also demonstrates the models of several measuring tasks carried out on 2D machines with similar design to classical 3D machines.
Keywords:
metrology; coordinate measuring machine; uncertainty; distance; feature
Download:
IMEKO-TC14-2007-27.pdf
DOI:
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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