Flat-topped pulsed magnetic field generation device and method, medium, equipment and terminal

A flat-top pulse and generating device technology, which is applied to conversion equipment that can be converted to DC without intermediate conversion, irreversible AC power input conversion to DC power output, etc., can solve problems that are difficult to balance high field strength and high stability. Flat-top pulse width and other problems, to achieve the effect of solving the difficulty of taking into account the magnetic field strength, high field strength, and simplifying the calculation process

CN114553021APending Publication Date: 2022-05-27HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-05-27

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Abstract

The invention belongs to the technical field of high-intensity magnetic field pulse power, and discloses a flat-topped pulsed magnetic field generation device, method, medium, equipment and terminal.The flat-topped pulsed magnetic field generation device comprises a plurality of capacitor type power sources formed by connecting in parallel, and each capacitor type power source is composed of a capacitor set, a protection inductor of the capacitor set, a discharge thyristor and a follow current loop; a pulse rectifier type power supply is composed of a power supply and a rectifier matched with the power supply. A dual-coil magnet; a rectifier output end positive pole of the pulse rectifier type power supply is connected with a positive pole of the magnet inner coil, and a rectifier output end negative pole is connected with a negative pole of the magnet inner coil; and the output end anodes of the capacitor type power supplies are connected with the anode of the magnet outer coil, and the output end cathodes are connected with the cathode of the magnet outer coil. The flat-topped pulsed magnetic field generating device based on the double-coil magnet can generate a flat-topped pulsed magnetic field with high stability, high field intensity and long flat-topped pulse width, and provides a necessary strong magnetic field environment for scientific experiments such as nuclear magnetic resonance and specific heat measurement.
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Description

technical field

[0001] The invention belongs to the technical field of strong magnetic field pulse power, and in particular relates to a flat-topped pulse magnetic field generating device, method, medium, equipment and terminal. Background technique

[0002] At present, with the rapid development of science and technology, strong pulsed magnetic field, as an extreme experimental environment, has become an indispensable research condition in basic frontier scientific research. Many scientific experiments and cutting-edge technologies such as specific heat measurement, nuclear magnetic resonance, and high-power gyrotron terahertz sources not only have extremely high requirements on magnetic field strength and magnetic field stability, but also the longer the magnetic field duration, the more conducive to the realization of scientific research. The flat-top pulsed strong magnetic field has the advantages of small steady-state strong magnetic field fluctuation, long duration, hi...

Examples

Embodiment 1

[0071] In view of the defects of the prior art, the purpose of the present invention is to provide a flat-topped pulsed magnetic field generating device and method based on a double-coil magnet, wherein the double-coil outer coil and the inner coil are respectively powered by a capacitor type power supply and a pulse rectifier type power supply The purpose of power supply is to solve the problem that the existing flat-topped magnetic field is difficult to take into account the high field strength, high stability, and long flat-topped pulse width.

[0072] In order to achieve the above object, the present invention provides a method for generating a flat-topped pulsed magnetic field based on a double-coil magnet. like figure 1 As shown, the method for generating a flat-topped pulsed magnetic field provided by an embodiment of the present invention includes the following steps:

[0073] S101, using the charged capacitor-type power supply to discharge the outer coil of the magne...

Embodiment 2

[0102] Aiming at the defects of the prior art, the purpose of the present invention is to provide a flat-topped pulsed magnetic field generating device and method based on a double-coil magnet, aiming to solve the problem that the current flat-topped pulsed magnetic field is difficult to achieve in the flat-top duration and the flat-top stage. Taking into account the problems of long rising edge time of flat-top waveform and low system efficiency, it provides a necessary strong magnetic field environment for scientific experiments such as nuclear magnetic resonance and specific heat measurement.

[0103] In order to generate a flat-topped pulsed strong magnetic field with high field strength, high stability and long flat-topped pulse width, the present invention adopts the following technical scheme: the device adopts a high-voltage capacitor type power supply and a pulse rectifier type power supply to supply power to the outer and inner coils of the magnet respectively, The co...