method for determination of planheitsmessfehlern in strips, particularly steel and metal strips, and planheitsmessrolle

摘要

In a process to measure flat surface irregularities in sheet steel the steel is brought into contact with a measuring roller (1) whose surface has two detents with measuring inserts (3a, 3b) back to back. The measuring inserts are linked by a pushrod (7) linked to a piezo-electric sensor. The passing sheet steel impinges on the measuring inserts at a pre-determined angle.