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Proceedings Paper

Moire Contouring Of Objects Generated By CAD
Author(s): K. J. Gasvik
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Paper Abstract

Moire technique using projected fringes is a suitable method for full field measurements of out-of-plane deformations and object contouring. In this paper a system using a TV-camera combined with a digital image processor is described. In this way a real-time system with the inherent possibilities of fringe interpolation for improving the accuracy and sensitivity is obtained. This system is very suitable for comparing the shape of different objects, e.g. for measuring the surface profile difference between a product specimen and a master object. An attractive alternative would be to measure the surface profile compared to a master object generated by means of CAD. An example of this method is presented. This technique offers a powerful tool for industrial production control.

Paper Details

Date Published: 17 February 1987
PDF: 4 pages
Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941712
Show Author Affiliations
K. J. Gasvik, University of Trondheim (Norway)

Published in SPIE Proceedings Vol. 0814:
Photomechanics and Speckle Metrology
Fu-Pen Chiang, Editor(s)

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