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.
|Title of host publication||Proceedings of 11th International Conference of the European Society for Precision Engineering & Nano Technology|
|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
|Conference||11th International Conference of the European Society for Precision Engineering and Nanotechnology|
|Period||23/05/2011 → 27/05/2011|