- Author
- Martin, J. W. | Bentz, D. P. | McKnight, M. E.
- Title
- Surface Roughness Measurements of Blasted Steel Panels Remotely Imaged Using a Thermographic Camera.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Journal
- Journal of Protective Coatings and Linings, 3-4, December 1986
- Keywords
- steels | cameras
- Identifiers
- infrared thermographic camera; computer image processor
- Abstract
- Researchers in the National Bureau of Standards, Building Materials Division, have developed a new method for quantitatively measuring and characterizing the roughness of a wide variety of blasted steel panels. The method uses an infrared thermograbhic camera coupled to a computer image processor. Panel roughness has been characterized in two ways: (1) globally, using fractal analysis techniques, and (2) physically, by first transforming the thermographic image or surface into its equivalent topographical surface and then computing standard roughness statistics. It has been demonstrated that fractal-based roughness descriptions correlate well with the perceived roughenss of a standard series of blasted steel panels; that is, a fractal-based description succinctly and quantitatively describes, yet is a good representation of, the surface shpaes on a blasted steel surface.