Surface Inspection Of Laser Treated Materials Via Three Dimensional Computer Color Contouring

R. W. Wygant; S. P. Almeida; R. J. Churchill; J. M. Glass; H. P . Groger

doi:10.1117/12.968852

16 January 1988 Surface Inspection Of Laser Treated Materials Via Three Dimensional Computer Color Contouring

R. W. Wygant, S. P. Almeida, R. J. Churchill, J. M. Glass, H. P . Groger

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968852
Event: Laser Technologies in Industry, 1988, Porto, Portugal

Abstract

The inspection of laser treated stainless steel alloy is performed via a microcomputer on-line to a digitizer which records interferograms produced using projection interference techniques. Heating was performed by an high power industrial carbon dioxide laser. Special image processing algorithms were developed to extract the heat variation features from the surrounding background. The results reveal the quality of the laser heat treatment and its effect on different areas of the alloy. Lateral and depth resolutions of the order several microns were achieved. A topological mapping of the treated material is presented as the three dimensional color (or shades of gray) contour of the surface.

Citation Download Citation

R. W. Wygant, S. P. Almeida, R. J. Churchill, J. M. Glass, and H. P . Groger "Surface Inspection Of Laser Treated Materials Via Three Dimensional Computer Color Contouring", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968852

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