Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/192263
Title: | Optical system for the measurement of the surface topography of additively manufactured parts |
Author: | Vilar, Narcís Artigas, Roger Bermudez, Carlos Thompson, Adam Newton, Lewis Leach, Richard Duocastella, Martí Carles, Guillem |
Keywords: | Òptica Mesurament Topografia Optics Mensuration Topography |
Issue Date: | 8-Jul-2022 |
Publisher: | IOP Publishing |
Abstract: | Additive manufacturing (AM) is now regularly used for customised fabrication of parts with complex shapes and geometries. However, the large range of relevant scales, high slopes, step-like transitions, undercuts, alternation between dark and overly bright regions and other complex features present on the surfaces, in particular of metal additive parts, represent a significant challenge for current optical measurement technologies. Measuring surfaces with such complex features requires high numerical aperture (NA) optics, and state-of-the-art systems commonly include optics that can only reliably acquire surface topographies over a small field of view (FOV), typically tens or hundreds of micrometers. Such measurements are often insufficient for practical applications. Here, we present an optical system that features a large NA ($\gt$0.3) and a wide FOV $2.9\,\times\,2.9$ mm, capable of measuring AM parts in a single measurement, without the need for lateral stitching to increase the FOV. The proposed system exhibits optical properties that provide facility for large-field, high-resolution measurement of industrially-produced additively manufactured parts. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1088/1361-6501/ac7c5c |
It is part of: | Measurement Science and Technology, 2022, vol. 33, num. 10, p. 104001 |
URI: | http://hdl.handle.net/2445/192263 |
Related resource: | https://doi.org/10.1088/1361-6501/ac7c5c |
ISSN: | 0957-0233 |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
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File | Description | Size | Format | |
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725458.pdf | 10.59 MB | Adobe PDF | View/Open |
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