DIAMOND NV-CENTER GYROSCOPE Russian patent published in 2023 - IPC G01C19/62 

FIELD: instrumentation.

SUBSTANCE: instrumentation, specifically quantum gyroscopes based on NV centres. Claimed device includes a diamond plate, two light sources with a wavelength of 450 to 650 nm, the first optical system for directing light from sources to the diamond plate. At the same time, two separate ensembles of NV centres are distinguished in the plates in the irradiation zone, respectively, with the optical radiation power density sufficient to transfer the system of electron spins of colour centres to a state where projection of these spins on the axis of the NV centre are equal to zero, due to constant impact of optical radiation on the diamond plate. The photodetector included in the composition makes it possible to determine the total fluorescence intensity of NV centres in a diamond plate. In addition, the claimed gyroscope contains the second optical system that allows directing fluorescence from the diamond plate to a photodetector, as well as at least one source of microwave radiation, as well as at least one source of high-frequency (HF) radiation, a source of constant magnetic field, a control circuit with the possibility of generating control signals for microwave, RF radiation sources, their amplitude and frequency, light source, analog-to-digital conversion of a signal from a photodetector.

EFFECT: reducing the systematic error in measuring the rotation speed caused by fluctuations of the magnetic field in the area where the diamond plate is located.

12 cl, 3 dwg