摘要
针对实验中磁场对超冷原子团温度和密度的测量的影响,提出了用三组轴向相互垂直的线圈产生的磁场来补偿的理论模型,并根据实验条件对理想模型进行修正.通过这个理论模型,不仅能达到空间某点磁屏蔽的要求,而且可以准确预计有关实验环境的磁感应强度分布.
It was proposed that a theoretic model of magnetic shield that counteracts earth's magnetic or other disturbing magnetic field by three mutually perpendicular groups of coils. After comparing it with the experimental data, it was known that zero magnetic field could be attained by the device both in theory and in experiment. This model can be easily adjusted to the condition of lab and zero magnetic field can be attained in experiment. It can also be used to anticipate the distribution of magnetic strength in a precision measurement.
出处
《浙江大学学报(理学版)》
CAS
CSCD
北大核心
2006年第1期44-47,共4页
Journal of Zhejiang University(Science Edition)
基金
国家自然科学基金(NSFC)重点资助项目(10334050)
浙江大学人才引进启动基金
浙江大学SRTP基金资助
关键词
磁场屏蔽
地磁补偿
磁场干扰
magnetic shield
magnetic compensation
magnetic interference