Three-dimensional magnetic field generation device

Abstract

The invention discloses a three-dimensional magnetic field generation device, comprising three groups of mutually orthogonal one-dimensional magnetic field generators. By adjusting side length sizes of a main coil and an auxiliary coil, relative space positions of the main and auxiliary coils and ampere-turns of the main and auxiliary coils and utilizing the linear relationship between an magnetic field and an electric current, enlargement of a magnetic field homogeneity range in a limited space is realized by adopting a constant-current direct-current power supply to drive the main and auxiliary coils. Compared with any traditional round or square Helmholtz coil, for generating the same magnetic field homogeneity range and magnetic field homogeneity, the limited space needed by the three-dimensional magnetic field generation device is greatly reduced by about 2 to 3 times, and the device is suitable for application occasions with higher requirements on the magnetic field homogeneity range and the magnetic field homogeneity in limited spaces.

Description

technical field [0001] The invention belongs to the field of magnetic field technology, and in particular relates to a three-dimensional magnetic field generating device. Background technique [0002] As we all know, energized coils can generate magnetic fields in space. This principle enables people to design and manufacture one-dimensional, two-dimensional and three-dimensional magnetic field generators according to actual needs, so as to meet the applications with special requirements for environmental magnetic fields. [0003] The traditional magnetic field generator structure generally adopts a circular or rectangular Helmholtz coil design. However, the scale of the uniform magnetic field generated by the magnetic field generator with this traditional structure is very limited, and the space utilization rate is low (the space utilization rate is defined as the volume of the uniform magnetic field divided by the space occupied by the magnetic field generator), so it can ...

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Problems solved by technology

[0015] Aiming at the defects of the prior art, the present invention provides a three-dimensional magnetic field generating device, the purpose of which is to improve the space utilization rate of the magnetic field generator and expand the uniform area of ​​the magnetic field in a limited space; The volume of the device, the uniformity of the magnetic field and the uniformity of the magnetic field have high requirements for occasions

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