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Strengthening compensation method and device for producing uniform magnetic field and use method thereof

A technology of uniform magnetic field and compensation method, applied in the direction of measuring devices, magnets, magnetic objects, etc., can solve the problems of wire heating and large power consumption, and achieve the effect of enhancing the magnetic field, reducing the generation of magnetic flux leakage, and improving the uniformity

Active Publication Date: 2018-08-03
武汉钢铁有限公司
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Problems solved by technology

However, because the magnetic field generated by the Helmholtz coil and the solenoid is weak, to increase the magnetic field, a large excitation current needs to be applied to the wire of the Helmholtz coil or the solenoid, which will generate a large power consumption. cause wire heating

Method used

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  • Strengthening compensation method and device for producing uniform magnetic field and use method thereof
  • Strengthening compensation method and device for producing uniform magnetic field and use method thereof

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to facilitate a clearer understanding of the present invention, but they do not limit the present invention.

[0043] An enhanced compensation method for generating a uniform magnetic field, setting the space V where the magnetic field occurs, and the target working magnetic flux density gears of the required magnetic field in the space V are B 1 , B 2 ,...B m , the uniformity of the magnetic field A 0 , m is a natural number; the enhancement and supplementary methods are as follows:

[0044] 1) Determine the length L of the solenoid and the radius R of the solenoid according to the space V where the magnetic field occurs, and calculate the working area of ​​the solenoid according to the length L of the solenoid, the radius R of the solenoid and the current I passed into the solenoid Magnetic flux density B;

[0045]

[004...

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Abstract

The invention discloses a strengthening compensation method and device for producing a uniform magnetic field and a use method thereof. A magnetic conductive material housing body structure is heightened by adopting a solenoid, the size of a magnetic field in a working zone is adjusted by adjusting the current intensity of the solenoid, flux is gathered by using a magnetic conductive material housing body, flux leakage can be decreased, the magnetic field in the working zone can be strengthened, magnetic fields outside the working zone can be also effectively shielded, and outside interferenceis suppressed. For avoiding the influence of the magnetic conductive material housing body on the uniformity of magnetic fields, graded winding units are placed nearby the working zone to improve theuniformity of the magnetic field in the working zone.

Description

technical field [0001] The invention relates to the technical field of electromagnetic measurement, in particular to an enhanced compensation method and device for generating a uniform magnetic field and a use method thereof. Background technique [0002] In many experiments and detectors, it is very necessary to apply a uniform magnetic field. At present, the uniform magnetic field generators commonly used at home and abroad include Helmholtz coils, solenoids, electromagnets and permanent magnets. Among them, electromagnets and permanent magnets are used to generate high field strength, and the uniformity of the generated magnetic field is poor. [0003] The Chinese invention patent application "Apparatus and method for generating a uniform magnetic field" [Application No.: 201610537023.5] discloses a device and method for expanding the uniform range of the axial magnetic field inside the solenoid. The method uses multiple solenoids, Each solenoid current is independent o...

Claims

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Application Information

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IPC IPC(8): H01F7/02G01R31/00G01R33/07
CPCG01R31/00G01R33/07H01F7/0284
Inventor 王晓燕骆忠汉胡守天
Owner 武汉钢铁有限公司
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