Method and apparatus for automatic scale recognition of surfaces of metallic strip material, in particular hot-rolled steel band and stainless steel strip

A method and an apparatus for automatic scale recognition on surfaces (1 a) of metallic strip material (1), particularly hot-rolled steel band or steel band, operates via an optical observation of the surface of moving belt (1a). To enable pre-treatment of the metal strip in the pickling tank preventive measures, including the use of the optical measurement values ​​for the treatment of the metal strip, it is proposed that by optically scanning the tape surface (1a) are taken Verzunderungsmuster and digitized and that the digitized Verzunderungsmuster basis of a comparison with a digital master pattern stored as a control signal for the connected devices for treating the band material (1) is used.