公开(公告)号：US11953388B2

公开(公告)日：2024-04-09

申请号：US16972929

申请日：2019-05-13

Applicant: ALLEIMA TUBE AB

Inventor： Gustaf Sjöblom ,  Anthony Ewert

IPC: G01L1/22 ,  G01K7/02 ,  G01K13/024 ,  G01L1/14

CPC classification number: G01L1/2206 ,  G01K7/02 ,  G01K13/024 ,  G01L1/142

Abstract: Metallic tube structure comprises a first tubular portion and a sensor structure. A sensor of the sensor structure is configured to detect a physical parameter of the metallic tube structure. The sensor structure is formed as a stack of thin-film layers. The stack comprises at least a first electrically insulating thin-film layer and at least one electrically conducting thin-film layer. The first electrically insulating thin-film layer is in mechanically bonded to the outer surface of the first tubular portion and is arranged to electrically insulate the at least one electrically conducting thin-film layer from the first tubular portion. A portion of the sensor structure is covered by a protective member, the protective member being arranged in direct contact with the at least a portion of the sensor structure and at least a part of the first tubular portion.