Method of determining the planarity of a moving rolled strip

Details Method of determining the planarity of a moving rolled strip Method of determining the planarity of a moving rolled strip

G - Physics

01

B

33/169

G01B 5/04 (2006.01) B21B 38/02 (2006.01) G01B 11/02 (2006.01) G01B 11/30 (2006.01)

Patent

CA 1255093

ABSTRACT OF THE DISCLOSURE The level of a plurality of points on the surface of a moving rolled strip is determined in relation to a horizontal reference plane by at least one optical triangulation and planarity indices of the strip are deduced therefrom. The position of at least one of the side edges of the strip is detected with respect to a predetermined fixed reference in a cross-section of the strip containing at least one of the points of the said plurality. The real position of the said point with respect to the fixed reference is deduced and the orientation of the emitted beam and of the re-transmitted beam constituting the triangulation is modified so as to allow for the real position of the said point.

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