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Proceedings Paper

Estimating angle-dependent systematic error and measurement uncertainty for a conoscopic holography measurement system
Author(s): Anna Paviotti; Simone Carmignato; Alessandro Voltan; Nicola Laurenti; Guido M. Cortelazzo
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Paper Abstract

The aim of this study is to assess angle-dependent systematic errors and measurement uncertainties for a conoscopic holography laser sensor mounted on a Coordinate Measuring Machine (CMM). The main contribution of our work is the definition of a methodology for the derivation of point-sensitive systematic and random errors, which must be determined in order to evaluate the accuracy of the measuring system. An ad hoc three dimensional artefact has been built for the task. The experimental test has been designed so as to isolate the effects of angular variations from those of other influence quantities that might affect the measurement result. We have found the best measurand to assess angle-dependent errors, and found some preliminary results on the expression of the systematic error and measurement uncertainty as a function of the zenith angle for the chosen measurement system and sample material.

Paper Details

Date Published: 19 January 2009
PDF: 12 pages
Proc. SPIE 7239, Three-Dimensional Imaging Metrology, 72390Z (19 January 2009); doi: 10.1117/12.805972
Show Author Affiliations
Anna Paviotti, Univ. of Padova (Italy)
Simone Carmignato, Univ. of Padova (Italy)
Alessandro Voltan, Univ. of Padova (Italy)
Nicola Laurenti, Univ. of Padova (Italy)
Guido M. Cortelazzo, Univ. of Padova (Italy)


Published in SPIE Proceedings Vol. 7239:
Three-Dimensional Imaging Metrology
J. Angelo Beraldin; Geraldine S. Cheok; Michael McCarthy; Ulrich Neuschaefer-Rube, Editor(s)

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