Metal abrasive particle magnetic field anti-interference device

A metal abrasive, anti-interference technology, applied in the field of magnetic shielding, can solve problems such as detection system interference, and achieve the effect of enhancing the magnetic shielding efficiency

Pending Publication Date: 2020-08-07
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention discloses a metal abrasive grain magnetic field anti-interference device, which aims to solve the external magnetic interferenc

Method used

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  • Metal abrasive particle magnetic field anti-interference device

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Embodiment Construction

[0015] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.

[0016] In order to enable those skilled in the art to better understand the solutions of the application, the technical solutions in the embodiments of the application will be described clearly and completely in conjunction with the embodiments of the application. Obviously, the described embodiments are only a part of the application. Examples, not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

[0017] Such as figure 1 As shown, a metal abrasive magnetic field interference prevention device includes a sensing component 1, an inner shielding layer 2, a middle shielding layer 3, and an outer shielding layer 4. The sensing component 1 is disposed in the inner sh...

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Abstract

The invention discloses a metal abrasive particle magnetic field anti-interference device. The device comprises a sensing part, an inner shielding layer, a middle shielding layer and an outer shielding layer; the sensing part is arranged in the inner shielding layer; the inner shielding layer is arranged in the middle shielding layer; the middle shielding layer is arranged in the outer shielding layer. According to the device of the invention, multiple different shielding materials are combined to be used, so that the magnetic shielding efficiency of a system can be enhanced; and the influenceof an external interference magnetic field is shielded while an internal magnetic field is protected.

Description

Technical field [0001] The invention relates to the field of magnetic shielding, in particular to a metal abrasive magnetic field anti-interference device. Background technique [0002] Magnetic field shielding technology is the shielding technology used by many precision instruments. In terms of precision instruments, many precision instruments containing circuit boards and power circuits are very susceptible to electromagnetic waves in space and cannot work normally. Therefore, magnetic shielding should be minimized The influence of disturbing magnetic fields. However, the current magnetic field structure shielding technology uses high permeability materials as the shielding layer. Most of the magnetic flux lines that interfere with the magnetic field will enter and pass through the shielding layer, reducing the impact on the internal environment of the shielding layer. This technology can only reduce the impact of the interference magnetic field. , And the multi-layer shieldi...

Claims

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Application Information

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IPC IPC(8): G01N15/00H05K9/00
CPCG01N15/00H05K9/0075
Inventor 李凯杨志良韩焱白文斌龚卿青牛泽任雅君苏新彦
Owner ZHONGBEI UNIV
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