Method for metrologically differentiating material regions of a page-like, web-like or sheet-like material and device therefor

摘要: A method and device for metrologically differentiating material regions, namely majority regions minority of a page-like, web-like or sheet-like material. At least one sensor receives measuring signal variable amplitude, the amplitude being depending on region located in spatial detection range sensor. The is increased by controllable amplifier. moved relatively to such that are more frequently than regions. characterized phases, which undergo examination means sensor, amplifier regulation set point carried out generates “majority region”, situations, undergoes sufficient change, “minority region”.