Repetitive pulse high-intensity magnetic field generation device and method

Abstract

The invention provides a repetitive pulse high-intensity magnetic field generation device and method, and belongs to the field of high-intensity magnetic fields. The device comprises a magnet coil anda plurality of independent power supply units, wherein the plurality of independent power supply units are connected to the two ends of the magnet coil in parallel; each power supply unit comprises an energy supply element, a follow current loop and an electrical switch, wherein the follow current loop is connected with the energy supply element in parallel and then is connected with the electrical switch in series, and the follow current loop comprises a follow current resistor and a one-way conduction element which are connected in series with each other. According to the invention, a scheme that multiple sets of power supplies discharge to a single magnet is adopted, a repeated pulse strong magnetic field can be generated by controlling the connection mode of multiple power supply units and the magnet coil and the discharge time sequence of the electrical switch, and the advantages of simple circuit topology and control system, diversified magnetic field waveforms and random controllable magnetic field polarity, magnetic field intensity and repetition frequency are achieved.

Description

technical field [0001] The invention belongs to the field of strong magnetic field technology, and more specifically relates to a device and method for generating a repetitive pulse strong magnetic field. Background technique [0002] Strong magnetic fields are used in modern scientific research to provide extremely important extreme experimental conditions. In the world, permanent magnets or superconducting magnet systems are generally used to provide this strong magnetic field. However, the permanent magnet system must use mechanical movement to achieve the magnetic field alternation of the magnetic refrigeration material. The superconducting magnet system has low temperature operating conditions, quench restrictions, and cost. expensive issues. [0003] The pulsed magnetic field refers to the magnetic field generated in space by the use of pulsed current through the magnet coil. The direction of the current flowing through the coil determines the polarity of the magnetic...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the existing solutions, the present invention provides a repetitive pulse strong magnetic field generation device and method, which uses multiple sets of power supplies to discharge a single magnet to realize the repetitive pulse magnetic field. The application range of the magnet inductance in the electromagnetic device is limited by the energy feeding inductance, the magnetic field strength is limited by the power supply, the repetition frequency is limited by the charging time of the power supply, and the repetitive magnetic field waveform is single.

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