Sheet Metal Oxide Detector
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United States of America Patent
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Issued Date -
Jan 1, 2009
app pub date -
Jun 29, 2007
filing date -
Jun 29, 2007
priority date (Note) -
Abandoned
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Abstract
An apparatus for detecting residual oxide or scale present on a metal surface following pickling or mechanical processing of the metal surface to remove scale makes use of laser light that is reflected off of the metal surface, a reflection detector that detects the absolute reflectivity and polarization of the reflecting laser light, a roughness measurement sensor, and a computerized control system that uses combinations of the information from the three sensors to provide an indication of the scale remaining on the metal surface.
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