Automated contact area measurement on structured surfaces

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Structured surfaces involved in a tribological test are quantified using an automated contact area measurement method. The method involves an image segmentation algorithm based on local image gradient extrema. The gradients are then used to accurately determine band-edge segmentation in order to measure the line thickness of the structured surfaces. The traceability of the method was established through an optical standard from NPL in the line-thickness range 10 -100 μm achieving expanded uncertainties in the range 0.5-1.9 μm. The specimen line thickness of different combinations of asperity angle and deformation load, were subject to 10 repeated automatic measurements. The combination of the parameters produce different contact areas, which are interesting for the tribological properties of the surfaces.
Original languageEnglish
Title of host publicationProceedings of the 18th International Conference of the European Society for Precision Engineering and Nanotechnology
EditorsD. Billington, R. K. Leach, D. Phillips, O. Riemer, E. Savio
PublisherThe European Society for Precision Engineering and Nanotechnology
Publication date2018
Pages473-474
ISBN (Electronic)9780995775121
Publication statusPublished - 2018
Event18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) - Venice, Italy
Duration: 4 Jun 20188 Jun 2018

Conference

Conference18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18)
CountryItaly
CityVenice
Period04/06/201808/06/2018

    Research areas

  • Automated measurement, Structured surfaces, Image segmentation

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