METHOD OF REDUCING VARIATION OF FREQUENCY OF ATOMIC CLOCK Russian patent published in 2024 - IPC H03L7/26 

FIELD: physics.

SUBSTANCE: invention relates to frequency stabilization equipment. Disclosed is a method of reducing variations in the frequency of an atomic clock in a geomagnetic field which varies in value and direction, consisting of a radio-optical microwave resonance sensor, connected to a processing circuit and placed in a magnetic screen, inside which a constant working magnetic field is created along the axis of the screen. Outside the magnetic screen, a constant additional magnetic field H_ad is created, the strength of which is set from the empirical dependence of the screening factor of the magnetic screen on the strength of the additional magnetic field H_ad.

EFFECT: reduced variations of the resonant frequency of the onboard atomic clock placed in the magnetic screen, under conditions of change in the value and direction of the geomagnetic field by magnetizing the magnetic screen, which increases its dynamic screening factor and reduces the effect of variations in the value and direction of the geomagnetic field on the resonance frequency of the atomic clock.

2 cl, 13 dwg, 9 tbl