Process for determining the waviness and/or the planarity of a steel strip comprises judging the position of the strip, modeling a virtual bearing surface and judging the waviness from the deviations of the surface from the bearing surface

摘要

Process for determining the waviness and/or the planarity of a strip (1) comprises judging the position of the surface (2) of the strip point-wise and/or line-wise in a space, modeling a virtual bearing surface to this surface, and judging the waviness from the deviations of the surface from the bearing surface. An Independent claim is also included for a device incorporating a distance measurer (10) for determining the waviness and/or the planarity of a strip