- Author
- Martin, J. W. | Bentz, D. P.
- Title
- Roughness Measures of Blasted Steel Surfaces Remotely Imaged With a Thermographic Camera.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Book or Conf
- Corrosion Protection by Organic Coatings Symposium. Proceedings. 1986, San Diego, CA, Kendig, M. W.; Leidheiser, H., Jr., Editors, 179-196 p., 1986
- Keywords
- abrasives | mapping | fractal dimension
- Identifiers
- depth mapping; fractal analysis; surface profile; surface roughness; thermographic image
- Abstract
- The roughness of thermgraphically imaged metallic surfaces are perceptually and geometrically quantified using fractal analysis and depth mapping techniques. For perceptual measurements, it was shown that the fractal dimensions of a standard series of blasted steel panels correlate with their perceived roughness and that a computer rendering of a fractal surface simulates the appearance of a blasted surface. In the initial stage of research on depth mapping or geometric surface characterization, a series of precision drilled and milled holes was used. For milled holes, a good relationship exists between thermographically and physically meaeured diameter and depth meaourenmts. For, drilled holes, a good relationship exists for diameter, but not depth, since the emission effects of hole depth and drill angle have yet to be resolved.