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An efficient calibration method for SQUID measurement system using three orthogonal Helmholtz coils  
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【英文篇名】 An efficient calibration method for SQUID measurement system using three orthogonal Helmholtz coils
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【作者】 李华; 张树林; 张朝祥; 孔祥燕; 谢晓明;
【英文作者】 Hua Li; Shu-Lin Zhang; Chao-Xiang Zhang; Xiang-Yan Kong; Xiao-Ming Xie; State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology (SIMIT); Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences;
【作者单位】 State Key Laboratory of Functional Materials for Informatics; Shanghai Institute of Microsystem and Information Technology (SIMIT); Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences;
【文献出处】 Chinese Physics B , 中国物理B, 编辑部邮箱 2016年 06期  
期刊荣誉:ASPT来源刊  CJFD收录刊
【英文关键词】 SQUID; magnetometer; Tesla/volt coefficient calibration; three-dimensional Helmholtz coil;
【摘要】 For a practical superconducting quantum interference device(SQUID) based measurement system,the Tesla/volt coefficient must be accurately calibrated.In this paper,we propose a highly efficient method of calibrating a SQUID magnetometer system using three orthogonal Helmholtz coils.The Tesla/volt coefficient is regarded as the magnitude of a vector pointing to the normal direction of the pickup coil.By applying magnetic fields through a three-dimensional Helmholtz coil,the Tesla/volt coefficient can be direc...
【英文摘要】 For a practical superconducting quantum interference device(SQUID) based measurement system,the Tesla/volt coefficient must be accurately calibrated.In this paper,we propose a highly efficient method of calibrating a SQUID magnetometer system using three orthogonal Helmholtz coils.The Tesla/volt coefficient is regarded as the magnitude of a vector pointing to the normal direction of the pickup coil.By applying magnetic fields through a three-dimensional Helmholtz coil,the Tesla/volt coefficient can be direc...
【基金】 Project supported by the“Strategic Priority Research Program(B)”of the Chinese Academy of Sciences(Grant No.XDB04020200); the Shanghai Municipal Science and Technology Commission Project,China(Grant No.15DZ1940902)
【更新日期】 2016-06-13
【分类号】 TP212
【正文快照】 1.IntroductionAs an extremely sensitive magnetic sensor,superconduct-ing quantum interference devices(SQUIDs)are widely usedfor the very weak magnetic field measurements,such as mag-netocardiography(MCG),fetal MCG,magnetoencephalogra-phy(MEG),etc.[1,2]SQU

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