Fringe projection entails projecting a fringe pattern or grating on an object and viewing it from a different direction. It is a convenient technique for contouring objects that are too coarse to be measured with standard interferometry. Fringe projection is related to optical triangulation using a single point of light and light sectioning where a single line is projected onto an object and viewed in a different direction to determine the surface contour (Case et al. 1987). The fringe patterns are projected on to the object surface and the deformed grating image is captured by a CCD camera for subsequent analysis. Phase shifting techniques have been employed to determine the phase value. The phase variation is achieved by using a linear translation stage incorporated to the grating. In this paper, the surface profile of objects for 3D printers is determined by using fringe pattern.
Track: Manufacturing Design and Servitisation
Published in: 1st European International Conference on Industrial Engineering and Operations Management, Bristol, United Kingdom
Publisher: IEOM Society International
Date of Conference: July 24
-25
, 2017
ISBN: 978-0-9855497-7-0
ISSN/E-ISSN: 2169-8767