Flatness measuring roll and method for determining flatness errors of a strip

摘要

The invention relates to a measuring roller for determining flatness errors of a strip and / or for determining the strip tension of a strip, in particular metal strip, with at least one measuring beam integrated in the roller casing or in the roller surface, which is supported on sensors, for example on force measuring elements. This measuring roller is characterized in that the measuring bar extends as a strip tension measuring bar for determining the time course of the strip tension substantially along the circumferential direction over a predetermined circumferential area. In the embodiment as flatness measuring roller a Bandzugmessbalken is assigned as a reference measuring beam to a plane extending obliquely to the roller axis measuring beam.