Verification of a CT scanner using a miniature step gauge

Angela Cantatore, J.L. Andreasen, S. Carmignato, Pavel Müller, Leonardo De Chiffre

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Abstract

The work deals with performance verification of a CT scanner using a 42mm miniature replica step gauge developed for optical scanner verification. Errors quantification and optimization of CT system set-up in terms of resolution and measurement accuracy are fundamental for use of CT scanning in dimensional metrology. Influence of workpiece orientation, magnification, source-object-detector distances and surface extraction method on metrological performances of a CT scanner was evaluated. Results show that the position of the workpiece in the CT cabinet is fundamental to get reliable measurements, while the highest magnification (best resolution) does not assure the best accuracy.
Original languageEnglish
Title of host publicationProceedings of 11th International Conference of the European Society for Precision Engineering & Nano Technology
Publishereuspen
Publication date2011
Publication statusPublished - 2011
Event11th International Conference of the European Society for Precision Engineering and Nanotechnology - Como, Italy
Duration: 23 May 201127 May 2011
Conference number: 11
http://www.como2011.euspen.eu/

Conference

Conference11th International Conference of the European Society for Precision Engineering and Nanotechnology
Number11
Country/TerritoryItaly
CityComo
Period23/05/201127/05/2011
Internet address

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