OPTICAL VECTOR MAGNETOMETER Russian patent published in 2024 - IPC G01R33/12 

FIELD: measuring.

SUBSTANCE: invention relates to measurement of weak magnetic fields. Optical vector magnetometer comprises a low frequency generator, a capacitor, an electromagnet coil, an active material in the form of a silicon carbide crystal containing at least one spin centre based on a silicon vacancy with a ground state placed inside the coil, direct current source, synchronous detector, control unit, laser emitting in near infrared region, optically connected to active material through semi-transparent mirror and lens, photodetector, wherein the active material contains spin centres with the main quadruplet spin state, around the active material there are three Helmholtz coils with mutually perpendicular axes connected to the second, third and fourth outputs by direct current sources, and the second output of the low-frequency generator is connected through a capacitor to the Helmholtz coil, the axis of which coincides with the axis C of the crystal.

EFFECT: detection of weak magnetic fields with high spatial resolution.

5 cl, 4 dwg