A magnetic field generator and its manufacturing method

Abstract

The invention discloses a magnetic field generating device and a manufacturing method thereof, and belongs to the technical field of uniform magnetic field generation. The magnetic field generating device comprises a U-shaped frame, armatures and three groups of square Helmholtz coils, the two armatures are symmetrically arranged on the two sides of the U-shaped frame and can move relative to theU-shaped frame, conical quadrangular magnetic heads are arranged at the inner ends of the armatures, the three groups of square Helmholtz coils are sequentially wound on the armatures from inside to outside, and the three groups of square Helmholtz coils are respectively a first-stage square Helmholtz coil, a second-stage square Helmholtz coil and a third-stage square Helmholtz coil. According tothe invention, a uniform magnetic field area with relatively high strength can be generated, and the manufacturing method is simple and reliable.

Description

technical field [0001] The invention relates to a magnetic field generating device and a manufacturing method thereof, belonging to the technical field of uniform magnetic field generation. Background technique [0002] Uniform magnetic field plays an important role in physical theory analysis and experimental research. At present, the uniform magnetic field generating devices commonly used at home and abroad include Helmholtz coils and solenoids. An infinitely long solenoid can generate a uniform magnetic field in an ideal state, but the length of the solenoid is always limited in the actual application process, resulting in unsatisfactory uniformity of the magnetic field; while the Helmholtz coil has a simple structure and a magnetic field area Large and highly uniform, Helmholtz coils are closer to practical applications than wireless long solenoids, but Helmholtz coils are mainly suitable for weak magnetic field applications. [0003] Some existing studies have shown t...

AI Technical Summary

Problems solved by technology

An infinitely long solenoid can generate a uniform magnetic field in an ideal state, but the length of the solenoid is always limited in the actual application process, resulting in unsatisfactory uniformity of the magnetic field; while the Helmholtz coil has a simple structure and a magnetic field area Large and highly uniform, Helmholtz coils are closer to practical applications than wireless long solenoids, but Helmholtz coils are mainly suitable for weak magnetic field applications

[0003] Some existing studies have shown that by using multiple solenoids and allowing each solenoid to have an independent current parameter, the range of a uniform magnetic field can be increased, but there are many parameters to be calculated, and most of them are still The calculation can only be selected based on empirical data and empirical formulas, the calculation time is long, and it is difficult to obtain a high-intensity uniform magnetic field generator

Images