Patent ID: 8339128

Claim:
A method for detecting a magnetic disturber of an at least triaxial emitter of a magnetic field, the method comprising: measuring the magnetic field emitted by the emitter using at least two triaxial sensors placed at different known positions, for each sensor, determining, from the magnetic field measured by the sensor, the coordinates of a direction vector collinear with an axis passing through the geometrical center of the emitter and the geometrical center of the sensor, the geometrical center of the emitter being the point at which there is located a magnetic field point source that models the emitter, and wherein the sensor is capable of being modeled by a point transducer situated at a point where the magnetic field is measured and constituting the geometrical center of the sensor, determining whether the smallest distance between the axes, each of which is collinear with one of the direction vectors, is smaller than a predetermined limit, and if the smallest distance is not smaller than the predetermined limit, reporting the presence of a magnetic disturber.