A three-axis magnetic field coil suitable for atomic spin gyroscopes

Abstract

The invention discloses a three-axis magnetic field coil suitable for an atomic spin gyroscope. According to the three-axis magnetic field coil, the problems that the traditional coil is poor in magnetic consistency and uniformity, single in direction and the like are solved. The three-axis magnetic field coil comprises a magnetic shielding tube, a cylindrical or rectangular hollow framework mounted in the magnetic shielding tube as well as a coil body winding the side face of the hollow framework; the coil body comprises a transverse coil and a longitudinal coil; the transverse coil is parallel to the bottom surface of the hollow framework, is circular-arc-shaped or a rectangular, and can generate a uniform magnetic filed in the Z-axis direction; the longitudinal coil is perpendicular to the bottom surface of the framework and is linear; uniform magnetic fields in the X-axis direction and the Y-axis direction can be generated by changing the direction of coil current. According to the three-axis magnetic field coil disclosed by the invention, the uniform magnetic fields which are independent to one another in the X-axis, Y-axis and Z-axis directions can be generated; the magnetic field in the Z-axis direction is a constant magnetic field B required by the working of the atomic spin gyroscope; the magnetic fields in the X-axis direction and the Y-axis direction can be used for offsetting magnetic field disturbance generated by the outside; the three-axis magnetic field coil is very suitable for the atomic spin gyroscope.

Description

technical field [0001] The invention relates to a three-axis magnetic field coil suitable for an atomic spin gyroscope. The coil can generate a three-dimensional uniform magnetic field. Cooperating with corresponding compensation measures, it can effectively offset the influence of the external and its own residual magnetic field, and improve the efficiency of the atomic spin gyroscope. accuracy. It belongs to the field of atomic gyroscope. Background technique [0002] As the role of inertial navigation and guidance technology in aerospace and the national economy continues to increase, gyroscopes, as the core components of this technology, have attracted much attention. In recent years, the atomic gyroscope developed based on the atomic spin effect has been favored by countries all over the world for its ultra-high theoretical accuracy, high reliability, and low cost. [0003] The basic principle of atomic spin gyroscope can be expressed by formula (1). [0004] ω p = ...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a three-axis magnetic field coil suitable for atomic spin gyroscopes, which can generate three magnetic fields perpendicular to each other, and solve the problems of traditional coils such as poor consistency and uniformity of the magnetic field and single direction.

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