OPTICAL QUANTUM MAGNETOMETER Russian patent published in 2023 - IPC G01R33/26 

FIELD: magnetic field measuring techniques.

SUBSTANCE: invention relates to a technique for measuring a magnetic field, to quantum magnetometers with optical pumping and detection. An optical quantum magnetometer contains a controlled oscillator, an amplitude modulator, an electro-optical modulator connected in series in a closed ring of automatic frequency control, to the optical input of which linearly polarized laser radiation is supplied through a laser radiation input device, a quantum sensor in the form of a translucent container with an alkali metal, a signal processing unit in in the form of a device for measuring the polarization azimuth of laser radiation and a phase locked loop device. The magnetometer has increased sensitivity and accuracy of magnetic field measurement.

EFFECT: increasing the sensitivity and accuracy of measuring the magnetic field with small sensor sizes.

2 cl, 2 dwg