Corcoran, HC;
Brown, SB;
Robson, S;
Speller, RD;
McCarthy, MB;
(2016)
Observations on the Performance of X-Ray Computed Tomography For Dimensional Metrology.
ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
, XLI-B5
pp. 25-31.
10.5194/isprs-archives-XLI-B5-25-2016.
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Abstract
X-ray computed tomography (XCT) is a rising technology within many industries and sectors with a demand for dimensional metrology, defect, void analysis and reverse engineering. There are many variables that can affect the dimensional metrology of objects imaged using XCT, this paper focusses on the effects of beam hardening due to the orientation of the workpiece, in this case a holeplate, and the volume of material the X-rays travel through. Measurements discussed include unidirectional and bidirectional dimensions, radii of cylinders, fit point deviations of the fitted shapes and cylindricity. Results indicate that accuracy and precision of these dimensional measurements are affected in varying amounts, both by the amount of material the X-rays have travelled through and the orientation of the object.
| Type: | Article |
|---|---|
| Title: | Observations on the Performance of X-Ray Computed Tomography For Dimensional Metrology |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.5194/isprs-archives-XLI-B5-25-2016 |
| Publisher version: | http://dx.doi.org/10.5194/isprs-archives-XLI-B5-25... |
| Language: | English |
| Additional information: | Copyright © The Author(s), 2016. All rights reserved. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS Archives) are open access publications, they are published under the Creative Common Attribution 3.0 License, see publications.copernicus.org/for_authors/license_and_copyright.html for details. |
| Keywords: | X-ray computed tomography (XCT, dimensional metrology, holeplate, orientation, beam hardening |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1505768 |
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