宇航计测技术 ›› 2023, Vol. 43 ›› Issue (5): 36-40.doi: 10.12060/j.issn.1000-7202.2023.05.05

• 量子计量专栏 • 上一篇    下一篇

基于原子磁场探测的弱电流计量校准技术发展现状

李伟鹏1,2,3，魏小刚1，杨仁福1,*   

  1. 1.北京量子信息科学研究院 量子精密测量研究部，北京 100193；2.中国科学院物理研究所，北京 100190；3.中国科学院大学，北京 100049
  • 出版日期:2023-11-15 发布日期:2023-12-09
  • 通讯作者: 杨仁福（1976-），男，研究员、博士生导师，博士，主要研究方向：原子钟及量子精密测量技术。
  • 作者简介:李伟鹏（1992-），男，博士在读，主要研究方向：基于热原子系综的磁场量子精密测量技术。

Development Status of Weak Current Metrology Calibration Technique Based on Atomic Magnetic Field Detection

LI Wei-peng1,2,3,WEI Xiao-gang1,YANG Ren-fu1,*   

  1. 1.Beijing Academy of Quantum Information Sciences,Beijing 100193,China; 2.Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China; 3.University of Chinese Academy of Sciences,Beijing 100049,China
  • Online:2023-11-15 Published:2023-12-09

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摘要： 随着原子磁力计灵敏度的迅速提高，原子系综磁场测量的应用范围逐渐扩大。近年来，已经有若干研究将原子磁力计用于微弱电流测量，研究结果揭示了这种测量方法在增强电流稳定性方面的潜力。借助原子磁力计的高灵敏度特性，通过电流产生的磁场监测电流的微弱变化，使用磁场测量结果进行反馈来稳定电流。主要阐述了原子磁场探测的基本原理以及其在电流计量领域的应用现状，并分析了使用原子磁力计进行电流测量的关键影响因素，展望了该技术的发展态势。

关键词: 原子磁力计, 弱电流, 测量, 灵敏度

Abstract: With the rapid improvement in the sensitivity of atomic magnetometers,the application of magnetic field measurement methods based on atomic ensemble is gradually expanding.In recent years,several studies have been conducted on the use of atomic magnetometers for weak current measurements,and the results have revealed the potential of this measurement method for enhancing current stability.With the high sensitivity characteristics of an atomic magnetometer,weak changes in the current are monitored by the magnetic field generated by the current,and the current is stabilized using feedback from the magnetic field measurements.It mainly describes the basic principle of atomic magnetic field detection and the current status of its application in the field of current measurement,and analyzes the key influencing factors of current measurement using atomic magnetometers,and looks forward to the development trend of this technology.

Key words: Atomic magnetometer, Weak current, Measurement, Sensitivity

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