利用智能手机磁传感器测量亥姆霍兹线圈磁场

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

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.

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.