铁磁材料居里温度测量的近似分析及居里转换的意义  

Approximate analysis of Curie temperature measurement of ferromagnetic materials and the significance of Curie transformation

作　　者：王昊[1] 何春娟[1] WANG Hao;HE Chun-juan(Physics Experiment Teaching Center, Renmin University of China, Beijing 100872, China)

机构地区：[1]中国人民大学物理实验教学中心,北京100872

出　　处：《物理实验》2021年第10期55-58,共4页Physics Experimentation

摘　　要：采用热磁曲线来测量铁磁材料居里温度,原理上通过一系列物理量(U-B-MH-MS-M0)的近似替换来完成.本文从理论上分析了这些物理量近似替换的依据以及由此所引起的实验误差,并通过对实验数据的处理,阐述了采用不同的居里转换所对应的居里温度的意义.The thermomagnetic curve is used to measure the Curie temperature of ferromagnetic materials in the physical experiment teaching.In principle,it is completed by the approximate replacement of a series of physical quantities(U-B-MH-MS-M0).The basis for the approximate replacement of physical quantities and the experimental errors caused by it were theoretically analyzed.Besides,through the processing of experimental data,the significance of the Curie temperature corresponding to different Curie transformations was explained.

关 键 词：铁磁材料 磁化强度 热磁曲线 居里温度 

分 类 号：O441.5[理学—电磁学]