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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

Active Publication Date: 2020-06-26
TSINGHUA UNIV
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Problems solved by technology

Existing magnetometers have not yet reached the theoretically expected accuracy

Method used

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

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0033] The invention discloses a self-sustaining regenerative system, comprising:

[0034] The optical pump and detection unit is used to prepare the atomic state and detect the Larmor precession of the atom;

[0035] The atomic gas chamber, magnetic field and magnetic shielding part are used to provide working atoms and a magnetic field environment with high stability and high uniformity;

[0036] The control circuit part is used to control the timing of the pump light and the probe light, maintain the Larmor precession of the atoms, and complete the self-sustained regeneration process.

[0037] Among them, the optical pump and detection unit includes:

[0038] In the optical pump optical path part, the atomic state is...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C19/58G01R33/02
CPCG01C19/58G01R33/02
Inventor 王力军王时光徐迟冯焱颖熊炜范博玲
Owner TSINGHUA UNIV
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