Self-sustained regeneration system and Larmor precession self-sustained regeneration method

A Larmor precession, regenerative technology, applied in the size/direction of the magnetic field, steering induction equipment, etc., can solve the problem that the magnetic field meter has not yet reached the theoretically expected accuracy, etc., to prolong the coherence time of the spin precession of alkali metal atoms , the effect of prolonging the coherence time of atomic spin precession and improving the measurement accuracy
CN106996775BActive Publication Date: 2020-06-26TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2020-06-26

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Abstract

The invention discloses a self-sustaining regeneration system and a Larmor precession self-sustaining regeneration method. The self-sustaining regeneration system comprises an optical pump, a detecting part, an atomic air chamber, a magnetic field, a magnetic shielding part and a circuit control part; wherein the optical pump and the detecting part are used for preparing atomic state and detecting atomic Larmor precession; the atomic air chamber and the magnetic field and the magnetic shielding part are used for providing working atoms and magnetic field environment of high stability and high uniformity; and the circuit control part is used for controlling pump light, detecting light timing sequence and completing self-sustaining regeneration process. According to the self-sustaining regeneration system and the Larmor precession self-sustaining regeneration method, a problem of short spin procession coherence time of a current quantum gyroscope is solved, a quantum gyroscope scheme extending the spin precession coherent time of the atoms is provided, accuracy and dynamic range of the quantum gyroscope are significantly improved, absolute magnetic field strength can be measured at the same time, and accuracy of magnetic field measurement is significantly improved.
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Description

technical field

[0001] The invention relates to the technical field of precise measurement of angular velocity and magnetic field, and more specifically relates to a self-sustained regeneration system and a Larmor precession self-sustained regeneration method. Background technique

[0002] Quantum gyroscope is a navigation instrument that can realize precise measurement of carrier angular velocity, while quantum magnetometer can realize precise measurement of absolute magnetic field. In recent years, due to their advantages of high precision and easy miniaturization, they have become an important development direction in the fields of high-precision inertial navigation and precision measurement, and have received widespread attention.

[0003] At present, the existing quantum gyroscope solutions generally have technical bottlenecks such as short quantum coherence time and small dynamic range of gyroscopes, making the indicators of quantum gyroscopes still unsatisfactory. Ex...

Claims

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