量子惯性仪表用磁屏蔽材料进展

量子惯性仪表是利用光场和磁场等手段操控原子、电子等微观粒子实现载体运动信息测量的新型惯性设备,量子惯性仪表对外界磁场的大小、稳定性和均匀性等提出了很高的要求,需要高性能的磁屏蔽技术与之相匹配。回顾了目前常用的磁屏蔽方式,针对最常用的被动型磁屏蔽所涉及的材料铁镍合金、非晶合金和软磁铁氧体等进行了梳理和总结,阐述了上述三种材料的优缺点以及适用范围,并展望了量子惯性仪表用磁屏蔽材料的发展趋势。

Magnetic Shielding Materials for Quantum Inertial Device

Quantum inertial device is a kind of new inertial measurement instrument that can achieve the high precision through atoms and electrons controlled by magnetic field and laser, which must be work in an extremely strict magnetic field. So the magnetic shielding technology must be in keeping with the development of atomic gyroscope. The magnetic shielding methods and materials which are related to atomic gyroscope are introduced in this paper. The advantage, disadvantage and application range of Fe-Ni alloy, amorphous alloy and ferrite which are applied in passive magnetic shields are summarized. Technical difficulties and future trends are also analyzed and summarized.