Hydrogen atomic frequency standard demagnetization device and demagnetization method

Abstract

The invention provides a demagnetizing apparatus and a demagnetizing method applicable to a hydrogen atomic frequency standard. The demagnetizing apparatus applicable to the hydrogen atomic frequency standard comprises a first transformer, a second transformer, a driving mechanism and a control mechanism, wherein the second transformer and the first transformer are in serial connection; the driving mechanism is connected with the first transformer; and the control mechanism is connected with the driving mechanism, and used for setting a control scheme to control the driving mechanism to automatically adjust the output current of the first transformer according to the control scheme. By adoption of the demagnetizing apparatus and the demagnetizing method applicable to the hydrogen atomic frequency standard, the automatic regulation of the transformers can be realized; the whole demagnetizing process can be completed automatically; and in addition, the demagnetizing apparatus has the advantages of automatic regulation of the output frequency, high stability, high precision and low current impact on the externally-connected physical system.

Description

technical field [0001] The invention relates to the field of demagnetization equipment, in particular to a hydrogen atom frequency standard demagnetization device and a demagnetization method. Background technique [0002] With the increasing development of domestic hydrogen atomic clock technology, the performance requirements for each component of the system are also more stringent. Among them, the magnetic shielding system of the hydrogen atomic clock is an important part. It is made of permalloy, which attenuates or shields the interference of the external environmental magnetic field, reduces the disturbance of the external magnetic field to the atomic energy level, and makes the physical system of the hydrogen atomic clock give a relatively stable state. transition signal. [0003] The hydrogen atomic frequency standard is a key technology and equipment to meet the application of autonomous navigation in my country, and the stability and accuracy of its output frequen...

AI Technical Summary

Problems solved by technology

And the structure is relatively fine, and there are many details that need to be considered. Therefore, passive hydrogen clocks should not directly use the demagnetization equipment and methods of active hydrogen clocks.

The demagnetization method of the active hydrogen clock for the passive hydrogen clock will produce obvious heating phenomenon, so the demagnetization process usually applicable to the active hydrogen atomic frequency standard may not be applied to the passive hydrogen atomic frequency standard, and may even affect the dynamic hydrogen atomic frequency standard. Atomic frequency standards wreak havoc

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