Method and apparatus for assessing surface roughness
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United States of America Patent
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-
Oct 31, 1989
Grant Date -
N/A
app pub date -
May 10, 1988
filing date -
May 10, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A relatively low cost processor based optical system is used to carry out the method. An area of the surface whose roughness is to be assessed is illuminated by a light source, and a reflected light is directed to the lens of the video camera. The analog output of the video camera is digitized, and the digital signal is provided to a processor which performs an analysis to provide a parameter indicative of the roughness of the surface.
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