Magnetic Flux Concentration Technology Based on Soft Magnets and Superconductors

High-sensitivity magnetic sensors are fundamental components in fields such as biomedicine and non-destructive testing. Flux concentration technology enhances the sensitivity of magnetic sensors by amplifying the magnetic field to be measured, making it the most effective method to improve the magne...

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Bibliographic Details
Published inCrystals (Basel) Vol. 14; no. 8; p. 747
Main Authors Wu, Yue, Xiao, Liye, Han, Siyuan, Chen, Jiamin
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2024
Subjects
Amplification
Concentrators
Diamagnetism
Electrons
Magnetic effects
Magnetic fields
Magnetic flux
magnetic flux concentration
Magnetic materials
Magnetic permeability
magnetic sensor
Magnets
Nondestructive testing
Parameter sensitivity
Permeability
Research methodology
Sensors
Simulation
Simulation methods
soft-magnet
Superconductivity
superconductor
Superconductors
China
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Summary:High-sensitivity magnetic sensors are fundamental components in fields such as biomedicine and non-destructive testing. Flux concentration technology enhances the sensitivity of magnetic sensors by amplifying the magnetic field to be measured, making it the most effective method to improve the magnetic field resolution of magnetic sensors. Superconductors and high-permeability soft magnetic materials exhibit completely different magnetic effects. The former possesses complete diamagnetism, while the latter has extremely high magnetic permeability. Both types of materials can be used to fabricate flux concentrators. This paper compares superconducting and soft magnetic flux concentration technologies through theoretical simulations and experiments, investigating the impact of different structural parameters on the magnetic field amplification performance of superconducting and soft magnetic concentrators. This research is significant for the development of magnetic focusing technology and its applications in weak magnetic detection and other fields.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst14080747