Verification of a CT scanner using a miniature step gauge

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

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 language	English
Title of host publication	Proceedings of 11th International Conference of the European Society for Precision Engineering & Nano Technology
Publisher	euspen
Publication date	2011
Publication status	Published - 2011
Event	11th International Conference of the European Society for Precision Engineering and Nanotechnology - Como, Italy Duration: 23 May 2011 → 27 May 2011 Conference number: 11 http://www.como2011.euspen.eu/

Conference

Conference	11th International Conference of the European Society for Precision Engineering and Nanotechnology
Number	11
Country/Territory	Italy
City	Como
Period	23/05/2011 → 27/05/2011
Internet address	http://www.como2011.euspen.eu/

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@inproceedings{4e69e6037bff499bb5552311b6dda585,

title = "Verification of a CT scanner using a miniature step gauge",

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.",

author = "Angela Cantatore and J.L. Andreasen and S. Carmignato and Pavel M{\"u}ller and {De Chiffre}, Leonardo",

year = "2011",

language = "English",

booktitle = "Proceedings of 11th International Conference of the European Society for Precision Engineering & Nano Technology",

publisher = "euspen",

note = "11th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2011 ; Conference date: 23-05-2011 Through 27-05-2011",

url = "http://www.como2011.euspen.eu/",

}

Cantatore, A, Andreasen, JL, Carmignato, S, Müller, P & De Chiffre, L 2011, Verification of a CT scanner using a miniature step gauge. in Proceedings of 11th International Conference of the European Society for Precision Engineering & Nano Technology. euspen, 11th International Conference of the European Society for Precision Engineering and Nanotechnology, Como, Italy, 23/05/2011.

TY - GEN

T1 - Verification of a CT scanner using a miniature step gauge

AU - Cantatore, Angela

AU - Andreasen, J.L.

AU - Carmignato, S.

AU - Müller, Pavel

AU - De Chiffre, Leonardo

N1 - Conference code: 11

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

M3 - Article in proceedings

BT - Proceedings of 11th International Conference of the European Society for Precision Engineering & Nano Technology

PB - euspen

T2 - 11th International Conference of the European Society for Precision Engineering and Nanotechnology

Y2 - 23 May 2011 through 27 May 2011

ER -

Verification of a CT scanner using a miniature step gauge

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