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Uniform magnetic field generator with variable frequency and field intensity and control method thereof

A technology of uniform magnetic field and control method, applied in control/regulation systems, instruments, electromagnets, etc., can solve problems such as complex design of uniform magnetic field generators

Active Publication Date: 2022-07-29
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, it is necessary to provide a uniform magnetic field generator with variable frequency and field strength and its control method to overcome the frequency and the complex problem of designing a uniform magnetic field generator with variable field strength

Method used

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  • Uniform magnetic field generator with variable frequency and field intensity and control method thereof
  • Uniform magnetic field generator with variable frequency and field intensity and control method thereof
  • Uniform magnetic field generator with variable frequency and field intensity and control method thereof

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Embodiment Construction

[0050]The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.

[0051] In the description of the present invention, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. Furthermore, "plurality" means at least two, eg, two, three, etc., unless expressly specifically defined otherwise.

[0052] In the description of the present invention, reference to "an embodiment" means that a particul...

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Abstract

The invention relates to a frequency and field intensity variable uniform magnetic field generator and a control method thereof.The frequency and field intensity variable uniform magnetic field generator comprises an alternating current power supply module, a coil module, a variable capacitance module and a control circuit module, and the alternating current power supply module, the coil module and the variable capacitance module are electrically connected in sequence; the control circuit module is electrically connected with the alternating current power supply module and the variable capacitance module respectively, determines a compensation capacitance value and a resonance current amplitude value according to a set magnetic field frequency and a magnetic field amplitude value, drives the variable capacitance module to adjust a capacitance value, and drives the alternating current power supply module to adjust a voltage frequency and an amplitude value; and the coil module generates a uniform magnetic field with variable frequency and field intensity. According to the invention, the compensation capacitor and the self-inductance of the Helmholtz coil form a resonance network to realize steady-current output, so that the Helmholtz coil generates a magnetic field with adjustable frequency and magnetic induction intensity.

Description

technical field [0001] The present invention is in the technical field of uniform magnetic field generators, in particular to a uniform magnetic field generator with variable frequency and field strength and a control method thereof. Background technique [0002] The Helmholtz coil is composed of a pair of parallel and coaxial circular connected coils. The distance between the two coils is the same as the radius of the circular coil, so that the currents in the two coils with the same direction and the same size will generate near the common axis. A wide uniform magnetic field area. On the basis of the one-dimensional magnetic field, the superposition of two-dimensional and three-dimensional combined magnetic fields can also be performed, which can provide an AC magnetic field or a DC magnetic field, and the current and the magnetic field have a very stable linear relationship. It can generate extremely weak magnetic fields up to hundreds of Tesla (T) magnetic fields, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/06G05F1/12
CPCH01F7/064G05F1/12
Inventor 林德焱赵雪亭陈小芸肖权张子豪
Owner WUHAN UNIV OF TECH
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