Device for measuring an electrical parameter through electrically-conductive casing

摘要

The invention relates to a device for measuring an electrical parameter through electrically-conductive casing, said device including a current injection electrode ( 3 ) and a measurement electrode ( 7 ) on one side of the wall of the casing ( 1 ). According to the invention, the injection electrode ( 3 ) is associated via a first magnetic coupler ( 4 ) with a current source ( 2 ) and the measurement electrode ( 7 ) is associated via a second magnetic coupler ( 6 ) with a measurement device ( 5 ) situated on the other side of the wall.