WEAK MAGNETIC FIELD SENSOR ON THIN MAGNETIC FILMS Russian patent published in 2021 - IPC G01R33/24 

FIELD: measuring technology.

SUBSTANCE: invention relates to measuring technology. The sensor of weak magnetic fields on thin magnetic films contains two microstrip resonators, inside which there are thin magnetic films, amplitude detectors, a circuit for summing useful signals and compensating for noise of a microwave generator, a magnetic system designed to form a constant magnetic bias field, a microcontroller, a reference oscillator, a frequency synthesizer, power amplifiers, and signals from two amplitude detectors are connected to the analog inputs of the microcontroller, and the digital outputs are connected to a frequency synthesizer, to the input of which a reference oscillator is also connected, and to the output - power amplifiers loaded onto microstrip resonators.

EFFECT: decrease in the magnitude of the drift of the zero value at the output of the device.

1 cl, 3 dwg