Slab surface contour monitor

Details Slab surface contour monitor Slab surface contour monitor

1988-11-28

1992-01-28

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356384, 356385, 250560, G01B 1124, G01N 2186

Patent

active

050838679

ABSTRACT:
A system for creating a image of the surface contours of a metal workpiece, such as a continuous cast slab, is provided including a sheet of single frequency, planar light is directed to strike a surface of the workpiece, and a video camera positioned to view the surface where the light strikes, such that when the surface of the workpiece is flat, a straight line is sensed by the video camera, when the surface is irregular, the video camera senses a nonlinear line, the video camera creates a two dimensional image of the sensed light and supplies this signal to a processor, which then creates an image of the workpieces which is displayed by a video monitor and a printer. The processor extracts a variety of quantitative parameter values from the images.

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Publication-"Development of Shape Meter for Hot Strip Rolling", Kenighimatsui and Hidefumitachibana, 111th ISIJ Meeting Apr. 1986.
"The White Scanner 100 Series," Technical Arts Corp., Seattle, Wash., Revision #1, Apr. 1983.

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