Patent ID: 7411391

Claim:
A device for analyzing an electrical current during operation, comprising: at least one probe ( 12 ) for measuring a magnetic field comprising at least two magnetoresistive or magnetoinductive sensors ( 14 , 16 ) which are sensitive to the magnetic field along a selected measurement axis, said two magnetoresistive or magnetoinductive sensors ( 14 , 16 ) being rigidly connected to each other in a position such that their selected measurement axes are parallel and offset relative to each other in a transverse direction relative to their selected measurement axes, the probe comprising output terminals which are specific to each magnetoresistive or magnetoinductive sensor in order to provide a signal which is representative of the magnetic field measured by each sensor along the selected measurement axis thereof; a processing chain ( 20 , 22 ) which is specific to each magnetoresistive or magnetoinductive sensor ( 14 , 16 ); means ( 24 , 26 ) for processing the signals from the various processing chains, which processing means comprising means for evaluating a difference between the field values measured by two magnetoresistive or magnetoinductive sensors having selected measurement axes which are parallel and which are offset transversely relative to each other; and means for evaluating a ratio between said difference and a distance separating the two magnetoresistive or magnetoinductive sensors.