True-color 3D surface metrology for additive manufacturing using interference microscopy

DiSciacca, Jack and Gomez, Carlos and Thompson, Adam and Lawes, Simon and Leach, Richard and Colonna de Lega, Xavier and de Groot, Peter (2017) True-color 3D surface metrology for additive manufacturing using interference microscopy. In: Joint Special Interest Group meeting between euspen and ASPE Dimensional Accuracy and Surface Finish in Additive Manufacturing, 10-12 October 2017, Leuven, Belgium.

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Abstract

Coherence scanning interferometry (CSI) is widely used for surface topography characterisation. With the ability to measure both rough surfaces with the high slopes and optical finishes, CSI has made contibutions in fields from industrial machining to optical fabrication and polishing [1,2]. While the low coherence sources for CSI are typically broadband and suitable for color imaging, the metrology is usually performed without regards for the color information [3]. We present color surface topography measurements from a CSI instrument designed to provide true color images in addition to areal surface topography of additive manufactired samples. The addition of color measurements enables contamination and defect detection along with blemish and discoloration identification.

Item Type: Conference or Workshop Item (Paper)
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Depositing User: Eprints, Support
Date Deposited: 07 Dec 2017 12:13
Last Modified: 08 Dec 2017 12:46
URI: http://eprints.nottingham.ac.uk/id/eprint/48598

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