Interlaboratory Comparison of a physical and a virtual assembly measured by CT

Alessandro Stolfi*, Leonardo De Chiffre

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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In a comparison including 20 laboratories, a physical as well as a virtual assembly provided as two data sets were used to investigate measuring and post-processing approaches in Computed Tomography, CT. Different procedures were used in the comparison including one simulating in-line measurement. The comparison demonstrated that: (i) a tangible improvement in the use of CT compared to previous comparisons; (ii) most of the participants were able to reduce their scanning time by more than 70% without increasing the length measurement errors; and (iii) most of the participants can further reduce their uncertainties, thereby reducing the tolerance size that can be inspected using CT in industry.
Original languageEnglish
JournalPrecision Engineering
Pages (from-to)263-270
Publication statusPublished - 2018


  • Computed Tomography (CT)
  • Measurement uncertainty
  • Assemblies


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