EP 0917641 A1 19990526 - METHOD AND DEVICE FOR MEASURING THE THICKNESS OF AN INSULATING COATING
Title (en)
METHOD AND DEVICE FOR MEASURING THE THICKNESS OF AN INSULATING COATING
Title (de)
VERFAHREN UND VORRICHTUNG ZUM KONTINUIERLICHEN MESSEN VON DICKEN ISOLIERENDER SCHICHTEN
Title (fr)
PROCEDE ET DISPOSITIF DE MESURE EN CONTINU D'EPAISSEUR DE REVETEMENT ISOLANT
Publication
Application
Priority
- FR 9701457 W 19970806
- FR 9610104 A 19960812
Abstract (en)
[origin: FR2752294A1] During the application of a roll coating on a metal substrate, using double contactless measuring sensors (1, 3), inductive, and for instance optical or capacitive, the method consists in effecting, before application, at least a double distance measurement over a strip zone not yet coated, then, effecting, after application, at least another double distance measurement over approximately the same zone already coated, and the thickness of the applied coating is deduced from the double measurements before application and after application. The invention is applicable to the measurement of thickness, on ferromagnetic substrates, of non solidified coatings, in particular liquid or pasty and to the adjustment of thickness in installations with corresponding coatings.
IPC 1-7
IPC 8 full level
G01B 7/06 (2006.01); B05D 3/14 (2006.01); C23C 2/34 (2006.01); G01B 11/06 (2006.01); G01B 21/08 (2006.01)
CPC (source: EP KR US)
G01B 7/06 (2013.01 - KR); G01B 7/085 (2013.01 - EP US)
Citation (search report)
See references of WO 9806999A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
FR 2752294 A1 19980213; FR 2752294 B1 19981127; CA 2263347 A1 19980219; EP 0917641 A1 19990526; JP 2000516711 A 20001212; KR 20000029934 A 20000525; US 6120833 A 20000919; WO 9806999 A1 19980219
DOCDB simple family (application)
FR 9610104 A 19960812; CA 2263347 A 19970806; EP 97936744 A 19970806; FR 9701457 W 19970806; JP 50944698 A 19970806; KR 19997001159 A 19990211; US 14767999 A 19990317