Current sensor based on an atomic magnetometer for DC application  

作　　者：Guozhu Li Qing Xin Xuxing Geng Zhi Liang Shangqing Liang Guangming Huang Gaoxiang Li Guoqing Yang 李国祝;辛青;耿旭兴;梁植;梁尚清;黄光明;李高翔;杨国卿(College of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310018,China;College of Physics,Huazhong Normal University,Wuhan 430079,China)

机构地区：[1]College of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310018,China [2]College of Physics,Huazhong Normal University,Wuhan 430079,China

出　　处：《Chinese Optics Letters》2020年第3期31-34,共4页中国光学快报（英文版）

摘　　要：A DC current sensor based on an optically pumped atomic magnetometer is proposed.It has a high linearity in a wide operation range,since the magnetometer measures the absolute magnitude of the magnetic field produced by the current to be measured.The current sensor exhibits a high accuracy with a non-moment solenoid and magnetic shielding to suppress the influence from the environment.The absolute error of the measured current is below 0.08 m A when the range is from 7.5 m A to 750 m A.The relative error is 5.54×10^-5 at 750 m A.

关 键 词：CURRENT SENSOR ATOMIC MAGNETOMETER high ACCURACY 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TM933.1[自动化与计算机技术—控制科学与工程]