Patent ID: 11906418
Assignee: ISENS PRO NV
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A device for measuring degradation of a surface layer of a conduit, comprising:
an insulator extending around the surface layer on the conduit;
a first conductor and a second conductor at a distance of the first conductor, said first and second conductor being arranged such that at least a portion of the insulator lies between the conduit and the first conductor and between the conduit and the second conductor,
wherein, the first and second conductors are arranged in a longitudinal direction of the conduit at a longitudinal distance from each other, or the first and second conductors overlap only partially at an outer end thereof and have an electrically insulating strip disposed between the overlapping portions of the first and second conductors such that there is no direct contact between the two; and
at least one measuring instrument configured to determine an impedance value between the first and second conductors which is representative of the impedance of the surface layer underneath said portion of the insulator.