东南大学学报（自然科学版）Issue(6)：1177-1180,4.DOI:10.3969/j.issn.1001-0505.2014.06.015
原子自旋磁强计磁屏蔽筒参数优化设计
Parameter optimization design of magnetic shielding cylinders for atomic spin magnetometer
摘要
Abstract
To solve the problem that the sensitivity of atomic spin magnetometer is restricted by mag-netic shielding cylinders,the parameter optimization models of magnetic shielding cylinders are de-signed by improving the axial coefficient formula of multilayered magnetic shielding cylinders.With the change of one parameter while the others keep fixed,according to the optimization models,the influences of parameters on the axial shielding factor are simulated by using Matlab software.The simulation results show that with the increase of the innermost radius,innermost length and radial gap,the axial shielding factor decreases quickly.The larger the axial clearance,the greater the shielding factor.According to the simulation results and the practical application needs,the parame-ters of magnetic shielding cylinders are optimized.The comparison of the shielding effects between the non-optimized and optimized magnetic shielding cylinders is carried out by Ansoft software.The results show that under the same external magnetic field,the shielding effectiveness of the non-opti-mized and optimized magnetic shielding cylinders are about 152.1 and 158.6 dB,respectively. Therefore,by the parameter optimization models,the magnetic shielding cylinders with small size, light weight,low cost,and great performance can be obtained.关键词
原子自旋磁强计/磁屏蔽/参数优化/Ansoft/屏蔽效能Key words
atomic spin magnetometer/magnetic shielding/parameter optimization/Ansoft/shiel-ding effectiveness分类
数理科学引用本文复制引用
张红,陈熙源,邹升..原子自旋磁强计磁屏蔽筒参数优化设计[J].东南大学学报（自然科学版）,2014,(6):1177-1180,4.基金项目
国家自然科学基金资助项目（51375087）、中央高校基本科研业务费专项资金资助项目（CXLX13＿083）、高等学校博士学科点专项科研基金资助项目（20110092110039）． （）
