The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2003
Filed:
Feb. 27, 2002
Kenneth Grefve, Västerås, SE;
Jörgen Bosson, Västerås, SE;
Magnus Hallefält, Kvicksund, SE;
Lars Jonsson, Västerås, SE;
ABB AB, Vasteras, SE;
Abstract
A system and a method for measuring and determining flatness of a strip ( ) of rolled material. Said system is comprising a measuring roll ( ) having a cylindrical central structure ( ) having a number of measuring devices for force/pressure registration. Said devices is generating measurement output signals (U ) depending on the contact between the strip and the measuring roll ( ), wherein said measurement output signal (U ) comprises a force component signal (U ). Said system also comprises a Flatness Determination Unit ( ), said unit being arranged for calculating the flatness (&Dgr;&sgr; ) of the strip based exclusively on signals derived from measurement output signal (U ) values generated by said measuring devices and information about the values of the width and thickness of the strip ( ). The system is continuously determining the Wrap Angle (&agr;) from at least one measurement output signal (U ) and automatically compensating for a changing Wrap Angle (&agr;). The present invention also provides a computer program product, a computer data signal and a flatness determination signal for accomplishing said objects of the invention.