Metallic tube structure with a sensor arrangement

A metallic tube structure having a longitudinal extension comprising:

• a first tubular portion having an inner surface and an outer surface, wherein the first tubular portion is made of a metal;
• and
• a sensor structure arranged on at least a first part of the outer surface of the first tubular portion,
• wherein the sensor structure comprises at least one sensor and at least one sensor signal line, the at least one sensor connected to the at least one sensor signal line, which at least one sensor is configured to detect a physical parameter of the first tubular portion,
• wherein the sensor structure extends in a longitudinal direction and in a direction of an axis of the first tubular portion,
• wherein the sensor structure is formed as a stack of thin-film layers,
• wherein the stack comprises at least a first electrically insulating thin-film layer and at least one electrically conducting thin-film layer,
• wherein the first electrically insulating thin-film layer is mechanically bonded to the outer surface of the first tubular portion,
• wherein at least the first electrically insulating thin-film layer is arranged to electrically insulate the at least one electrically conducting thin-film layer from the first tubular portion,
• wherein the at least one sensor signal line extends in the stack in the longitudinal direction, and
• wherein at least a portion of the sensor structure is covered by a protective member, the protective member being arranged in direct contact with the portion of the sensor structure and at least a second part of the first tubular portion.