Method of and apparatus for measuring planarity of strip, especially metal strip

US6853927B2 · kind B2 · utility

Assignee

• WG Bergwerk- Und Walzwerk-Maschinenbau GmbH · DE

Inventors

• Andreas Noe · Kerken, DE
• Rolf Noe · Mülheim, DE

Key dates

• Filing date: Apr 17, 2003
• Grant date: Feb 8, 2005
• Expiry date: May 1, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2203/0282
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method of measuring planarity of strip in a strip-rolling line or a strip-processing line in which a measuring beam, a plurality of measuring beams or discrete measuring pins in an inclined pattern across a measuring roller, measures the tension forces acting upon the strip to form a force summation foundation across the strip width. A tension distribution function is derived from the force summation function by taking derivatives of the force-summation function with respect to the width dimension of the strip and, if desired, dividing that derivative by the thickness of the strip.