EP 2452181 A1 20120516 - METHOD AND APPARATUS FOR INSPECTION OF SURFACES
Title (en)
METHOD AND APPARATUS FOR INSPECTION OF SURFACES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR INSPEKTION VON OBERFLÄCHEN
Title (fr)
PROCÉDÉ ET APPAREIL POUR INSPECTION DE SURFACES
Publication
Application
Priority
- NO 2010000264 W 20100702
- NO 20092602 A 20090708
Abstract (en)
[origin: WO2011005110A1] A method and an apparatus for inspection of at least one surface of an object (2) having an elongated shape in a direction (X) where an illuminating device(ID), that may comprise at least two illuminators (1a, 1b) or a non-discrete light array, is arranged in the vicinity of the object. At least one image digitization device (20) is arranged for capturing images of said surface. The illuminating device is further aligned in a manner with regard to the direction (X), thereby illuminating a part of the surface of said object (2) at an angle (a, a') in a dark field and/or bright field condition, whereby defects in the said surface can be visualized and imaged. In particular 3D defects, pressure lines, dents, dielines etc. in extruded products can be detected. An image processing unit can compare captured data with stored threshold data for quality inspection and grading. If rejection is necessary, a manipulator can be controlled in accordance to this and remove rejected objects. The object and/or apparatus can be arranged for movement along direction (X).
IPC 8 full level
G01N 21/892 (2006.01); G01N 21/88 (2006.01); G01N 21/89 (2006.01); G01N 21/952 (2006.01); G01N 33/20 (2006.01)
CPC (source: EP US)
G01N 21/89 (2013.01 - EP US); G01N 21/8901 (2013.01 - EP); G01N 21/8914 (2013.01 - EP); G01N 21/952 (2013.01 - EP); G01N 33/2045 (2018.12 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011005110 A1 20110113; EP 2452181 A1 20120516; EP 2452181 A4 20121219; NO 20092602 A1 20110110; NO 336577 B1 20150928
DOCDB simple family (application)
NO 2010000264 W 20100702; EP 10797349 A 20100702; NO 20092602 A 20090708