COMBINED MAGNETORESISTIVE SENSOR Russian patent published in 2017 - IPC H01L43/08 

FIELD: physics.

SUBSTANCE: magnetoresistive bridge (sensor) is located on the surface of a magnetic field concentrator made of a ferromagnetic material and is a core for the coils of two sections forming a short-circuited coil of inductance. Near the magnetoresistive bridge there is a source of a constant magnetic field. The coils of the first coil section, wound around the concentrator, pass along the surface of the magnetoresistive bridge, acting on it with a secondary magnetic field. This magnetic field, in turn, is excited by a current induced in the coils of the first and the second sections under the action of the detected pulsed magnetic field.

EFFECT: increasing the magnetic sensitivity to useful signals.

7 cl, 5 dwg