Low-noise and high-shielding-coefficient iron-based amorphous material electromagnetic shielding barrel

An iron-based amorphous and shielding coefficient technology is applied in the field of magnetic shielding technology of the present invention to achieve the effects of low noise and high shielding coefficient

Inactive Publication Date: 2021-03-09
BEIHANG UNIV
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Problems solved by technology

[0003] Aiming at the defects or deficiencies in the prior art, the present invention provides a low-noise and high-shielding coefficient iron-based amorphous material electromagnetic shielding bucket. The main component of the iron-based amorphous material has the following chemical formula: Fe x Si y B 1-X-Y , x=0.5~0.95, y=0.5~0.05, the relative magnetic permeability of the iron-based amorphous material can be as high as 450,000, and the electromagnetic shielding of the barrel body, upper cover and lower cover is formed by using the iron-based amorphous material Barrel combination can reduce magnetic noise, solve the shortcomings of large magnetic noise caused by traditional permalloy magnetic shielding barrels, and meet the application requirements of high shielding coefficient and low magnetic field noise, such as meeting the requirements of ultra-high performance atomic spin quantum sensors need

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  • Low-noise and high-shielding-coefficient iron-based amorphous material electromagnetic shielding barrel

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Embodiment Construction

[0017] Below with the accompanying drawings ( figure 1 ) to illustrate the present invention.

[0018] figure 1 It is a structural schematic diagram of an iron-based amorphous material electromagnetic shielding bucket implementing the present invention with low noise and high shielding factor. refer to figure 1 As shown, an iron-based amorphous material electromagnetic shielding barrel with low noise and high shielding coefficient, the iron-based amorphous material barrel body 1, the iron-based amorphous material upper cover 2 and the iron-based amorphous material are formed by using the iron-based amorphous material The electromagnetic shielding barrel combination of the material lower cover 3, the main component of the iron-based amorphous material has the following chemical formula Fe x Si y B 1-X-Y , x=0.5~0.95, y=0.5~0.05. The relative magnetic permeability of the iron-based amorphous material is as high as 450,000 (ratio to vacuum magnetic permeability). The iron-...

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Abstract

The present invention provides a low-noise and high-shielding-coefficient iron-based amorphous material electromagnetic shielding barrel. The main components of the iron-based amorphous material havethe following chemical formulas: FexSiyB1-X-Y, x=0.5-0.95 and y=0.5-0.05, the relative permeability of the iron-based amorphous material can reach 450,000, and the iron-based amorphous material is utilized to form an electromagnetic shielding barrel combination of a barrel body, an upper cover and a lower cover. The defect that a traditional permalloy magnetic shielding barrel is large in magneticnoise is overcome, and the application requirements of high shielding coefficient and low magnetic field noise are met, for example, the requirements of an ultra-high-performance atomic spin quantumsensor are met.

Description

technical field [0001] The invention relates to magnetic shielding technology, in particular to a low-noise and high-shielding coefficient iron-based amorphous material electromagnetic shielding bucket, the main component of the iron-based amorphous material has the following chemical formula Fe x Si y B 1-X-Y , x=0.5~0.95, y=0.5~0.05, the relative magnetic permeability of the iron-based amorphous material can be as high as 450,000, and the electromagnetic shielding of the barrel body, upper cover and lower cover is formed by using the iron-based amorphous material Barrel combination can reduce magnetic noise, solve the shortcomings of large magnetic noise caused by traditional permalloy magnetic shielding barrels, and meet the application requirements of high shielding coefficient and low magnetic field noise, such as meeting the requirements of ultra-high performance atomic spin quantum sensors need. Background technique [0002] Many quantum sensors based on atomic spi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00G01R15/00
CPCH05K9/0081G01R15/00
Inventor 丁铭马丹跃曾敏陆吉玺王坤于荣海
Owner BEIHANG UNIV
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