Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners

<p>The miniaturisation of components leads to new demands on measurement systems. One of these is the resolution. As a volumetric analysis method and method of non-destructive testing, industrial X-ray computed tomography (XCT) has the ability to measure geometrical features and their correspo...

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Main Authors: M. Busch, T. Hausotte
Format: Article
Language:English
Published: Copernicus Publications 2023-01-01
Series:Journal of Sensors and Sensor Systems
Online Access:https://jsss.copernicus.org/articles/12/1/2023/jsss-12-1-2023.pdf
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author M. Busch
T. Hausotte
author_facet M. Busch
T. Hausotte
author_sort M. Busch
collection DOAJ
description <p>The miniaturisation of components leads to new demands on measurement systems. One of these is the resolution. As a volumetric analysis method and method of non-destructive testing, industrial X-ray computed tomography (XCT) has the ability to measure geometrical features and their corresponding dimensions without destroying them and can therefore be used for quality assurance. However, the concept of resolution is not trivial for XCT and has not yet been finally clarified. In particular, the interface structural resolution, the detectability of two surfaces facing each other after surface segmentation, faces a lack of a test specimen, a corresponding measurand and a reliable method. Simulation-based XCT investigations of a method to determine this type of resolution are presented in this article using the geometry of a test specimen that contains several radially arranged holes of the same size. The borehole diameters correspond to the distance between the holes to investigate the resolvability of surfaces and interfaces. The evaluation is based on mean and extreme values of grey value profiles between the individual boreholes of the reconstructed volume. It is shown that the geometrical detectability of the test specimen surface and interface can be extended by a reasonable choice of the threshold value for surface segmentation within a defined interval. With regard to the resolving capability, a distinction is made between assured detectability and possible detectability, as well as the threshold value used when using the ISO50 threshold for surface segmentation and measurement chain completion.</p>
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spelling doaj.art-bdaab1be6cc64b56ac17a23c974b66322023-01-12T07:02:16ZengCopernicus PublicationsJournal of Sensors and Sensor Systems2194-87712194-878X2023-01-01121810.5194/jsss-12-1-2023Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scannersM. BuschT. Hausotte<p>The miniaturisation of components leads to new demands on measurement systems. One of these is the resolution. As a volumetric analysis method and method of non-destructive testing, industrial X-ray computed tomography (XCT) has the ability to measure geometrical features and their corresponding dimensions without destroying them and can therefore be used for quality assurance. However, the concept of resolution is not trivial for XCT and has not yet been finally clarified. In particular, the interface structural resolution, the detectability of two surfaces facing each other after surface segmentation, faces a lack of a test specimen, a corresponding measurand and a reliable method. Simulation-based XCT investigations of a method to determine this type of resolution are presented in this article using the geometry of a test specimen that contains several radially arranged holes of the same size. The borehole diameters correspond to the distance between the holes to investigate the resolvability of surfaces and interfaces. The evaluation is based on mean and extreme values of grey value profiles between the individual boreholes of the reconstructed volume. It is shown that the geometrical detectability of the test specimen surface and interface can be extended by a reasonable choice of the threshold value for surface segmentation within a defined interval. With regard to the resolving capability, a distinction is made between assured detectability and possible detectability, as well as the threshold value used when using the ISO50 threshold for surface segmentation and measurement chain completion.</p>https://jsss.copernicus.org/articles/12/1/2023/jsss-12-1-2023.pdf
spellingShingle M. Busch
T. Hausotte
Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners
Journal of Sensors and Sensor Systems
title Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners
title_full Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners
title_fullStr Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners
title_full_unstemmed Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners
title_short Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners
title_sort simulation based investigation of the metrological interface structural resolution capability of x ray computed tomography scanners
url https://jsss.copernicus.org/articles/12/1/2023/jsss-12-1-2023.pdf
work_keys_str_mv AT mbusch simulationbasedinvestigationofthemetrologicalinterfacestructuralresolutioncapabilityofxraycomputedtomographyscanners
AT thausotte simulationbasedinvestigationofthemetrologicalinterfacestructuralresolutioncapabilityofxraycomputedtomographyscanners