Abstract: A current sensor includes at least one primary circuit that is intended to conduct the current to be measured, and a secondary circuit containing at least four Neel-effect® transducers, each having a coil and a superparamagnetic core. The current sensor is designed on the basis of a printed circuit board, the primary circuit including at least two distinct metal tracks that are composed of one and the same metal and connected to one another by a via made of a rivet, of a tube or of an electrolytic deposit of the same metal.

Abstract: A device for magnetic measurement that includes a DC magnetic field sensor having at least four discrete elements, each of the discrete elements being constituted by at least one coil and a magnetic material without remanence, where the at least four discrete elements are substantially identical. The magnetic field sensor includes a first discrete element orientated in a given direction, and a second discrete element associated therewith to constitute a first differential pair. The second discrete element being orientated in parallel but in an opposite direction relative to the first discrete element. The device further including two other discrete elements constituting a second differential pair substantially identical to the first differential pair. The two other discrete elements being parallel to the orientation of the first differential pair but are respectively orientated in an opposite direction to the first and second discrete elements of the first differential pair.

Abstract: A current sensor includes at least one primary circuit that is intended to conduct the current to be measured, and a secondary circuit containing at least four Neel-effect® transducers, each having a coil and a superparamagnetic core. The current sensor is designed on the basis of a printed circuit board, the primary circuit including at least two distinct metal tracks that are composed of one and the same metal and connected to one another by a via made of a rivet, of a tube or of an electrolytic deposit of the same metal.

Abstract: A magnetic measurement device is provided, including a DC magnetic field sensor consisting of at least four discrete elongate elements, each element consisting of at least one coil and a magnetic material without remanence, the discrete elements being substantially identical; the magnetic field sensor includes: a first discrete element oriented along a given axis, a second element being associated with same in order to form a first differential pair oriented along a substantially identical axis but in opposing directions; and two other elements forming a second differential pair substantially identical to the first but oriented once more along an axis substantially identical to the axis of the first pair but in respectively opposing directions.