A Fast Switching Device for Magnetic Field Direction Suitable for Helmholtz Coils

A technology of Helmholtz coil and magnetic field direction, applied in the direction of the size/direction of magnetic field, magnetic resonance measurement, etc., can solve the problems of slow switching speed and poor operation safety, and achieve slow switching speed, reasonable structure, and eliminate electric shock hidden effect

Active Publication Date: 2021-09-17
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of slow switching speed and poor operation safety in the existing magnetic field direction switching technology, the present invention provides a fast switching device for magnetic field direction suitable for Helmholtz coils

Method used

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  • A Fast Switching Device for Magnetic Field Direction Suitable for Helmholtz Coils
  • A Fast Switching Device for Magnetic Field Direction Suitable for Helmholtz Coils

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Embodiment Construction

[0031] A fast switching device for magnetic field direction suitable for Helmholtz coils, including a main part and a control part;

[0032] The main part includes a rectangular substrate 1, first to fourth insulating strips 201-204, first to sixth conductive strips 301-306, first to eighth field effect transistors 401-408, first to tenth Six conductive strips 501~516;

[0033] The first to fourth insulating strips 201 to 204 are all attached to the upper surface of the rectangular substrate 1 along the transverse direction, and the first to fourth insulating strips 201 to 204 are arranged in parallel; the first to fourth insulating strips 201 The left ends of ~204 are all flush with the left edge of the rectangular substrate 1; the right ends of the first to fourth insulating strips 201~204 are all flush with the right edge of the rectangular substrate 1; the first to fourth insulating strips 201~204 The upper plate surface of each is provided with a left and right sinking g...

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Abstract

The invention relates to a magnetic field direction switching technology, in particular to a magnetic field direction fast switching device suitable for Helmholtz coils. The invention solves the problems of slow switching speed and poor operation safety in the existing magnetic field direction switching technology. A magnetic field direction fast switching device suitable for Helmholtz coils, comprising a main body and a control part; the main body includes a rectangular substrate, first to fourth insulating strips, first to sixth conductive strips, the first One to eighth field effect transistors, one to sixteenth conductive strips; the control part includes a first BNC connector, an isolation circuit, a fifth resistor, a switch circuit, second to fifth BNC connectors, a first capacitor, Second capacitor, three-terminal voltage regulator. The invention is suitable for switching the direction of the magnetic field.

Description

technical field [0001] The invention relates to a magnetic field direction switching technology, in particular to a magnetic field direction fast switching device suitable for Helmholtz coils. Background technique [0002] A Helmholtz coil is a device that creates a uniform magnetic field in a small area and is widely used in materials, manufacturing, medical, engineering, aerospace, and precision measurement. In many applications, it is often necessary to switch the direction of the magnetic field generated by the Helmholtz coil. In this regard, people generally reverse the positive and negative poles of the DC excitation power supply by manual operation, thereby changing the direction of the current in the Helmholtz coil, thereby switching the direction of the magnetic field generated by the Helmholtz coil. This kind of magnetic field direction switching technology has the following problems due to its own principle limitations: First, the DC excitation power supply must ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/02G01R33/34
CPCG01R33/02G01R33/34
Inventor 李玉清武寄洲肖连团贾锁堂
Owner SHANXI UNIV
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