Moire Contouring Of Objects Generated By CAD

K. J. Gasvik

doi:10.1117/12.941712

17 February 1987 Moire Contouring Of Objects Generated By CAD

K. J. Gasvik

Proceedings Volume 0814, Photomechanics and Speckle Metrology; (1987) https://doi.org/10.1117/12.941712
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

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.

Citation Download Citation

K. J. Gasvik "Moire Contouring Of Objects Generated By CAD", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); https://doi.org/10.1117/12.941712

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