论文标题
磁场
Magnetic Field of a Permanent Magnet
论文作者
论文摘要
对于磁场计算，圆柱永久磁体通常被视为理想的方位角对称螺线管。尽管经常使用这种近似值，但几乎无法提供证明这种方法的有效性和局限性的研究论文。在本文中，将圆柱永久磁体的实验得出的磁场与理想电磁阀的分析磁场进行了比较。证明并使用用于测量磁场分布的实验设置来收集数据。所提出的设置允许测量磁铁周围磁场的轴向和径向分量的分布。实验数据与理论预测非常一致，证实了使用理想电磁阀模型预测永久磁体的磁场分布的有效性。
For magnetic field calculations, cylindrical permanent magnets are often approximated as ideal, azimuthally symmetric solenoids. Despite the frequent usage of this approximation, research papers demonstrating the validity and limitations of this approach are scarcely available. In this paper, the experimentally derived magnetic field of a cylindrical permanent magnet is compared with the analytically calculated magnetic field of an ideal solenoid. An experimental setup for measuring the magnetic field distribution is demonstrated and employed for gathering the data. The proposed setup allows to measure the distributions of the axial and radial components of the magnetic field surrounding the magnet. The experimental data is in a very good agreement with the theoretical predictions, confirming the validity of using the model of an ideal solenoid for predicting a magnetic field distribution of a permanent magnet.
