Determination of measurement uncertainty in X-ray computed tomography through simulation - the CTSimU3 project

Authors:
  • WGWerth Messtechnik GmbH
    Werth Messtechnik GmbH
  • FBFrederic Ballach
    Frederic Ballach
  • P(Physikalisch-Technische Bundesanstalt (Ptb)
    Physikalisch-Technische Bundesanstalt (Ptb)
  • MBMarkus Bartscher
    Markus Bartscher
  • FOFabrício Borges de Oliveira
    Fabrício Borges de Oliveira
  • MBMatthias Robert Oskar Braun
    Matthias Robert Oskar Braun
  • WKWeidmüller Interface GmbH & Co. KG
    Weidmüller Interface GmbH & Co. KG
  • BDBurhan Dogan
    Burhan Dogan
  • HGHEITEC PTS GmbH
    HEITEC PTS GmbH
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Abstract
The WIPANO research project series CTSimU deals with radiation simulation for determining the measurement uncertainty when measuring geometric features using X-ray computed tomography. Industrial X-ray computed tomography (CT) completely captures workpieces, including their inner and outer structures for metrology purposes. However, previous effort to determine task-specific measurement uncertainty is not always justifiable. Simulating the measuring process allows to estimate the measurement uncertainty numerically and to predict systematic measurement deviations. The CTSimU3 project aims to create a time-saving, resource-efficient, and reliable method that enables measurement uncertainty determination in CT through simulation using the GUM Supplement 1. This article presents the project idea as well as the first results of the requirement analysis.