期刊
MEASUREMENT
卷 222, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2023.113656
关键词
Magnetic noise; Loss calculation; Nanocrystalline magnetic shield; Magnetic error
This paper introduces the application of nanocrystalline alloy magnetic shields in ultra-sensitive atomic sensors. The calculation and modeling of magnetic noise, as well as the impact of structural parameters on magnetic noise, are analyzed. An error model for magnetic noise is also presented, providing valuable theoretical support for reducing magnetic noise and improving the performance of atomic sensors.
Magnetic field interference poses a major challenge to the proper functioning of electronic equipment, electronic instruments and ultra-sensitive sensors, so magnetic field shield is a vital component. Particularly for ultra-sensitive atomic sensors, there is a pressing need for magnetic shields with superior performance and reduced magnetic noise. This paper introduces the application of nanocrystalline alloy magnetic shields in ultra -sensitive atomic sensors. We have analyzed the calculation of the longitudinal and transverse magnetic noise of nanocrystalline magnetic shields using a loss separation based approach and establish a magnetic noise model for nanocrystalline alloy magnetic shields. Meanwhile, we investigate the impact of structural parameters on longitudinal and transverse magnetic noise to effectively minimize magnetic noise in the shield. Additionally, we present an error model for magnetic noise, providing valuable theoretical support for mitigating magnetic noise errors in K-Rb-21Ne SERF co-magnetometers. This study contributes to the advancement of magnetic shield technology for ultra-sensitive atomic sensors, improving their overall performance and accuracy.
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