VORRICHTUNG ZUR ERFASSUNG DER FORMATGENAUIGKEIT EINER WELLPAPPEBAHN

The apparatus (12) has a corrugated cardboard (1) including plane portions between profiled patterns. A light source emits a light band to a surface (17) of an upper liner (1a). A measuring camera (18) is arranged above a web (7) of the corrugated cardboard, which absorbs light (19) reflected by the surface and detects the profiled patterns by a light intensity of the light. An evaluation device is connected to the measuring camera for determining distance of the profiled patterns from each other on a basis of differing light intensities of the light.