Title: Metrological performance verification of coordinate measuring systems with optical distance sensors

Authors: Simone Carmignato, Enrico Savio

Addresses: Dipartimento di Tecnica e Gestione dei Sistemi Industriali (DTG), Universita degli Studi di Padova, Stradella San Nicola 3, I-36100 Vicenza, Italy. ' Dipartimento di Innovazione Meccanica e Gestionale (DIMEG), Universita degli Studi di Padova, via Venezia 1, 35131 Padova, Italy

Abstract: Optical coordinate measuring systems are gaining increasing interest in production quality control, due to their rapidity and other advantages with respect to traditional measuring techniques using contact probes. This paper presents an experimental investigation on procedures and standards for testing coordinate measuring systems equipped with optical distance sensors. Particular attention is given to methods for testing two of the most important specifications of optical coordinate measuring system: the probing error and the error of indication for size measurement. The investigation is aimed at improving the performance verification methods employed at the state of the art. This will help the industrial users in the selection process of those systems, with an improvement of measurement precision in manufacturing.

Keywords: precision metrology; coordinate metrology; optical distance sensors; performance verification; coordinate measuring machines; optical CMMs; quality control; probing errors; error of indication; size measurement.

DOI: 10.1504/IJPTECH.2011.039457

International Journal of Precision Technology, 2011 Vol.2 No.2/3, pp.153 - 171

Published online: 06 Apr 2011 *

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