大学物理 ›› 2020, Vol. 39 ›› Issue (05): 31-32.doi: 10.16854 /j.cnki.1000-0712.190402

• 物理实验 • 上一篇    下一篇

利用智能手机磁传感器测量亥姆霍兹线圈磁场

刘炜,程敏熙   

  1. 华南师范大学物理与电信工程学院,广东广州510006
  • 收稿日期:2019-09-05 修回日期:2019-10-13 出版日期:2020-05-20 发布日期:2020-05-17
  • 通讯作者: 程敏熙,E-mail: chengmx@ scnu.edu.cn
  • 作者简介:刘炜( 1996—) ,女,广东广州人,华南师范大学物理与电信工程学院2018 级硕士研究生

Measuring the magnetic field of Helmholtz coil with the magnetic sensor of a smart phone

LIU Wei,CHENG Min-xi   

  1. School of Physics and Telecommunication,South China Normal University,Guangzhou,Guangdong 510006,China
  • Received:2019-09-05 Revised:2019-10-13 Online:2020-05-20 Published:2020-05-17

摘要: 通过预实验确定智能手机磁传感器的位置后,用其测量亥姆霍兹线圈轴线的磁场分布,验证毕奥-萨伐尔定律及磁场的叠加原理,提供一种较为精确而简便的测量磁场的新方法.

关键词: 智能手机, 磁传感器, 亥姆霍兹线圈, 叠加原理, 毕奥-萨伐尔定律

Abstract: The magnetic sensor in the smart phone is located by a pre-experiment. The magnetic field distribution throughout the axle wire of Helmholtz Coil is measured,Biot-Savart Law and magnetic field’s superposition principle are verified by a handy and precise new measurement method.

Key words: smart phone, magnetic sensor, Helmholtz Coil, superposition principle, Biot-Savart Law