Accuracy Enhancement of CT Measurements using Data Filtering

Alessandro Stolfi, Maarja-Helena Kallasse, Lorenzo Carli, Leonardo De Chiffre

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Abstract

This paper describes the impact of data filtering on CT capability to inspect assemblies. The investigation was carried out using an industrial multi-material assembly provided by Novo Nordisk A/S. The assembly comprises two parts made of polyoxymethylene (POM) and of an alloy comprising polycarbonate (PC) and acrylonitrile butadiene styrene (ABS), respectively. 3D median filters with different window sizes were taken in account as influence factors, while a variety of dimensional and geometrical tolerances were used as evaluation parameters. All measurands were calibrated using a tactile CMM with uncertainty below 7 μm.
Original languageEnglish
Title of host publicationProceedings of the 6th Conference on Industrial Computed Tomography (iCT 2016)
Number of pages6
Publication date2016
Publication statusPublished - 2016
Event6th Conference on Industrial Computed Tomography - University of Applied Sciences Upper Austria, Wels, Austria
Duration: 9 Feb 201612 Feb 2016
http://www.3dct.at/cms2/index.php/en/welcome-2

Conference

Conference6th Conference on Industrial Computed Tomography
Location University of Applied Sciences Upper Austria
CountryAustria
CityWels
Period09/02/201612/02/2016
Internet address

Keywords

  • Computed tomography
  • Dimensional metrology
  • Multi-material measurements
  • INTERAQCT Marie Curie
  • Data filtering
  • Polymers

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