大学物理 ›› 2014, Vol. 33 ›› Issue (3): 41-41.
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李朝荣[1] 张明吉[2] 王三胜[1] 李华[1]
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摘要： 提出了李萨如图形的一个新应用——测量软磁材料磁导率．实验系统由示波器和信号发生器构成，以安培环路定理及法拉第电磁感应定律为理论基础，利用李萨如图形实现了软磁材料磁导率的测量．实验结果给出了在材料未达到饱和磁化的情况下，不同励磁频率下的磁导率测量结果．
关键词: 李萨如图形, 磁导率, 软磁材料, 示波器
Abstract: A novel method of measuring the magnetic permeability of ferrimagnetic materials is proposed based on Lissajous figures. Theoretically, based on Ampere circuital theorem and Faraday＇s law, the measurement system consists of oscillograph and signal generator. The system is capable of measuring the permeability of ferrimagnetic materials by using X-Y mode of oscillograph. Experiment results are shown at different frequencies of applied magnetic field.
Key words: Lissajous, magnetic permeability, ferrimagnetic, oscillograph
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李朝荣[] 张明吉[] 王三胜[] 李华[]. 李萨如图形法测量软磁材料磁导率[J]. 大学物理, 2014, 33(3): 41-41.
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https://dxwl.bnu.edu.cn/CN/Y2014/V33/I3/41
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