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Nuclear magnetic resonance gyroscope

A technology of nuclear magnetic resonance gyroscope and pump light, which is applied in the direction of steering induction equipment, etc., can solve the problems of large power consumption, increase the difficulty of coil design, unfavorable miniaturization of nuclear magnetic resonance gyroscope, etc., and achieve the improvement of Larmor precession frequency, The effect of increasing polarizability

Active Publication Date: 2022-02-18
北京量子信息科学研究院
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  • Abstract
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Problems solved by technology

Furthermore, traditional nuclear magnetic resonance gyroscopes have high requirements for coil drive power, require a lot of power consumption, and increase the difficulty of coil design, which is not conducive to the realization of miniaturized nuclear magnetic resonance gyroscopes.

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Embodiment Construction

[0015] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0017] It will be understood that when an element or layer is referred to as being "on," "adjacent," "con...

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Abstract

The invention relates to a nuclear magnetic resonance gyroscope. A pump light emitter is used for emitting pump light; an acousto-optic modulator is arranged on a light path of the pump light; an atomic gas chamber is arranged on a light path of the pump light passing through an acousto-optic modulator; the pump light enters the atomic gas chamber along the Z-axis direction; the atomic gas chamber is arranged in a space surrounded by a three-dimensional compensation coil; a signal generator is connected with a control end of the acoustic optical modulator and the three-dimensional compensation coil; the signal generator applies a bias voltage to the three-dimensional compensation coil so as to generate a bias magnetic field in the Z-axis direction; the signal generator controls the acousto-optic modulator to modulate the pump light to obtain modulated pump light, and the modulation frequency of the acousto-optic modulator is the Larmor precession frequency of the corresponding alkali metal atoms under the bias magnetic field in the Z-axis direction; the pump light and the bias magnetic field in the Z-axis direction are modulated, the alkali metal atoms and the inert gas in the atomic gas chamber are polarized, and the alkali metal atoms are made to generate coherent resonance.

Description

technical field [0001] The present application relates to the technical field of quantum precision measurement, in particular to a nuclear magnetic resonance gyroscope. Background technique [0002] The nuclear magnetic resonance gyroscope realizes the measurement of rotation information by measuring the spin precession of the noble gas nucleus. The nuclear magnetic resonance gyroscope has the advantages of high precision, simple structure and easy miniaturization, and it is expected to become a navigation-grade gyroscope device for large-scale applications in the future. At present, the research of NMR gyroscope mainly has two aspects. On the one hand, it is to find factors and solutions to improve its sensitivity and accuracy in principle. On the other hand, through experiments, considering factors such as force, light, electricity, magnetism and heat in the process of device construction, optimize various parameters in the device, and finally further improve the sensitiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/62
CPCG01C19/62
Inventor 罗文浩刘岩张红杨仁福
Owner 北京量子信息科学研究院
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