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Design method of equivalently replacing square Helmholtz coil

A technology of Helmholtz coil and design method, applied in coils, electrical components, circuits, etc., can solve the problems of small influence of magnetic field area and inconvenient processing and positioning of circular Helmholtz coils

Active Publication Date: 2019-04-26
安徽璞华大数据技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The simplest of them is the circular and square Helmholtz coil system, but because the circular Helmholtz coil is not convenient for processing and positioning, the research on the square Helmholtz coil has gradually increased in recent years, but in some In the field of mechanical processing such as wire drawing and rolling, it is necessary to make some changes to the shape of the square Helmholtz coil, so a deformation that can change the shape of the square Helmholtz coil but has less influence on the magnetic field area generated by it is needed method

Method used

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  • Design method of equivalently replacing square Helmholtz coil
  • Design method of equivalently replacing square Helmholtz coil
  • Design method of equivalently replacing square Helmholtz coil

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Embodiment 1

[0070] A design method of the present invention equivalently replacing a square Helmholtz coil is now further described in conjunction with specific implementation steps, such as figure 1 shown.

[0071] Step S1: Design a square Helmholtz line, determine the side length of the square 2l=2×184mm and the distance 2a=200mm of the square coil and the current intensity I=1A;

[0072] Step S2: Put l and a into the following equations to determine the deformable boundary value L of the square 1 and L 2 , where L 1 > L 2 ;

[0073] B ZFH (0,0,0)=B CFH (0,0,0)

[0074] l 1 +l 2 = 2l

[0075] L 1 ≈208mm, L 2 ≈162mm.

[0076] Step S3: According to the determined boundary value L 1 and L 2 , with the following conditions;

[0077]

[0078]

[0079]

[0080] Step S4: Select l that meets the needs and satisfies the conditions of S3 1 = 200mm and l 2 =168mm, determine the length of the rectangular Helmholtz coil as 2l 1 = 400mm, width 2l 2 = 336mm and the coil di...

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Abstract

The invention discloses a design method of an equivalently replacing square Helmholtz coil. The design method of the equivalently replacing the square Helmholtz coil is realized based on the predesigned square Helmholtz coil and a space rectangular coordinate system given when the square Helmholtz coil is designed. The square Helmholtz coil can be designed through the deformation in a limited range on the basis of the square Helmholtz coil, it is proved that the square Helmholtz coil can have less effect on a formed uniform magnetic field area of the square Helmholtz coil through the deformation in the limited range.

Description

technical field [0001] The invention relates to the application in the field of uniform magnetic field generation, in particular to a method for changing the shape of a square Helmholtz coil with little influence on the uniform magnetic field area generated by it. Background technique [0002] The Helmholtz coil is composed of a pair of identical, coaxial, parallel current coils each closely wound with N turns. Because of its simple structure and the ability to generate a magnetic field with good uniformity, it has become an important component of physical experiments such as magnetic measurement and some machining experiments that do not require very high magnetic field uniformity. The simplest of them is the circular and square Helmholtz coil system, but because the circular Helmholtz coil is not convenient for processing and positioning, the research on the square Helmholtz coil has gradually increased in recent years, but in some In the field of mechanical processing su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F5/00
CPCH01F5/00
Inventor 李大龙刘武东
Owner 安徽璞华大数据技术有限公司