大学物理 ›› 2015, Vol. 34 ›› Issue (3): 25-25.

• 著者文摘 • 上一篇    下一篇

磁滞回线实验图形畸变现象的讨论与分析

野仕伟 郝军华 王云峰   

  1. 天津大学仁爱学院物理教学部,天津301636
  • 出版日期:2015-03-25 发布日期:2015-03-20

Analysis on the figure distortion of hysteresis loops in experiment

  • Online:2015-03-25 Published:2015-03-20

摘要: 对铁磁材料的磁滞回线进行了三次函数拟合,并用拟合参数给出了Hm、Bm、Hc、Br的表达式.计算出了励磁线圈和探测线圈中的电流强度随时间的变化关系,并依此结果对实际测量中出现的磁滞回线形状失真畸变作出了解释.

关键词: 磁滞回线, 拟合, 畸变

Abstract: The hysteresis loops are fitted with the cubic polynomial functions as well as Hm,Bm,Hcand Brexpressed by the fitting parameters.In addition,the intensity of the currents in excitation coil and detection coil are calculated based on which the figure distortion of hysteresis loops measured in actual experiments is explained.

Key words: hysteresis loop, fitting, distortion

中图分类号: 

  • O441.4