亥姆霍兹线圈轴线上磁场分布分析

Analysis of Magnetic Field Theoretical Distribution on Helmholtz Coil Axis

为了研究亥姆霍兹线圈轴线上磁场的分布特点,先根据毕奥-萨伐尔定律和磁场叠加原理导出亥姆霍兹线圈轴线上磁场分布的表达式,再通过实验测出亥姆霍兹线圈轴线上的磁场分布。将实测值与理论值做对比,通过误差分析得到测准亥姆霍兹线圈轴线上磁场分布的方法。

In order to study the characteristics of magnetic field distribution on Helmholtz coil axis,the expression of magnetic field distribution on Helmholtz coil axis were derived,first,based on the Biot-Savart law and superposition principle of magnetic field.And then,through experiment the magnetic field distribution on Helmholtz coil axis was measured.The accurate method of measuring the magnetic field distribution on Helmholtz coil axis was obtained through analysis error,after comparing the measured values with the theoretical value.