G - Physics – 01 – B
Patent
G - Physics
01
B
33/32, 33/60, 34
G01B 11/30 (2006.01) B21B 38/02 (2006.01) G01B 11/02 (2006.01) G01B 11/245 (2006.01)
Patent
CA 1186768
ABSTRACT Optical beams from lasers are directed towards the middle and edges of a hot rolled steel sheet by fixed mirrors and rotatable mirrors which allow for different sheet widths. The points of incidence of the beams are observed by photodiode cameras whose receiving axes are orientated by fixed mirrors and rotatable mirrors so that the said points remain in the respective fields of observation of the cameras. The levels of the points are obtained by triangulation and are used in the calculation of the planarity of the sheet.
379641
Centre de Recherches Metallurgiques-Centrum Voor Research In de
Marks & Clerk
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