EP 0192043 B1 19890322 - APPARATUS FOR MEASURING THE LEVEL OF THE MOLTEN METAL IN A VESSEL, ESPECIALLY IN A CONTINUOUS-CASTING MOULD
Title (en)
APPARATUS FOR MEASURING THE LEVEL OF THE MOLTEN METAL IN A VESSEL, ESPECIALLY IN A CONTINUOUS-CASTING MOULD
Publication
Application
Priority
LU 85754 A 19850201
Abstract (en)
[origin: EP0192043A1] 1. Apparatus for measuring the level of molten metal (M) in a vessel, especially a continous casting mould (K), by sensing the secondary electromagnetic fields emanating from the liquid metal, the apparatus comprising a primary coil (P, P2 , P4 ) creating a time varying electromagnetic field, two secondary measurement coils (S, S2 , S'2 ; S4 , S'4 ) extending along substantially the entire height of the primary coil and positioned on the opposed sides of the primary coil and means for delivering the difference of the signals sensed by the secondary measurement coils, characterized in that at least one of the coils (P; P2 ; P4 ; S, S'; S2 , S'2 ; S4 , S'4 ) is subdivided into at least two superimposed stages (40, 41, 42, 43, 44) having different magnetic properties and in that at least on stage of the secondary measurement coils (S, S2 , S4 ) includes at its ends connections for relaying the calibrating signals.
IPC 1-7
IPC 8 full level
G01F 23/26 (2006.01); B22D 11/16 (2006.01); B22D 11/18 (2006.01)
CPC (source: EP)
B22D 11/186 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0192043 A1 19860827; EP 0192043 B1 19890322; AT E41617 T1 19890415; DE 3662496 D1 19890427; JP S61178616 A 19860811; LU 85754 A1 19860902
DOCDB simple family (application)
EP 86100498 A 19860116; AT 86100498 T 19860116; DE 3662496 T 19860116; JP 1998886 A 19860131; LU 85754 A 19850201