Neigungs- und Krümmungsmessungen von Metallblechen in einem Walzwerk

Details

Veröffentlichungs-Nr.

EP4053495

Aktenzeichen

EP21160573

Anmeldetag

3. März 2021

Veröffentlichung

17. Juli 2024

Erteilung

17. Juli 2024

Rechtsraum

EP

IPC

G01B7/06B21B37/16G01D5/243

Abstract

The present invention relates to a measurement device (106) for measuring properties of a metal sheet (104) processed in a rolling mill (100), comprising: an inspection coil set comprising a transmitter coil (108) and a receiver coil (110), the transmitter coil being configured to apply a time-varying magnetic field to the metal sheet, and the receiver coil being configured to detect a magnetic field transient produced from the metal sheet. The property of the metal sheet is derivable from the magnetic field transient. A correction coil set (116, 118, 122, 124), for detecting a spatial deviation of the metal sheet from a reference plane, each correction coil being connectable to a capacitor to form a respective resonance circuit having a resonance frequency. The correction coils are resonated at the respective resonance frequency. A shift in the resonance frequency in the presence of the metal sheet is detectable and the spatial deviation is derivable from the shifts.

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete