US 12,461,067 B2
Inspection device for the inspection of two-dimensionally extending metal objects
Michael Schulte, Meppen (DE)
Assigned to Rosen IP AG, Stans (CH)
Appl. No. 17/907,412
Filed by ROSEN SWISS AG, Stans (CH)
PCT Filed Mar. 26, 2021, PCT No. PCT/EP2021/057997
§ 371(c)(1), (2) Date Sep. 27, 2022,
PCT Pub. No. WO2021/198097, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 102020108963.5 (DE), filed on Mar. 31, 2020.
Prior Publication US 2023/0122236 A1, Apr. 20, 2023
Int. Cl. G01N 27/82 (2006.01)
CPC G01N 27/82 (2013.01) 15 Claims
OG exemplary drawing
 
1. An inspection device for inspecting metallic objects extending in planar fashion, the inspection device being embodied as pipeline-impassable, the inspection device comprising:
at least one functional unit for recording object information;
at least one magnet unit provided for magnetizing the object and having a plurality of segments, wherein
each segment has a magnet,
the plurality of segments includes a first segment, a second segment, and a third segment,
the first segment has a first magnetization direction,
the second segment has a second magnetization direction,
the third segment has a third magnetization direction,
the third segment is between the first segment and the second segment,
the first magnetization direction and the second magnetization direction are substantially parallel and opposite, and
the third magnetization direction is substantially orthogonal relative to the first magnetization direction and the second magnetization direction,
the magnet of each segment is a permanent magnet,
the first segment has a first side,
the second segment has a second side, and
the first side and the second side face one another and have an identical polarity.