用数字电桥测量介电材料与软磁材料的特性  

Measuring the characteristics of dielectric and magnetically soft materials using digital bridge

作　　者：杜晓波[1] 孙昕[1] 韩炜[1] 龙北玉[1] 付成伟[1] 梁桁楠[1] 崔航[1] 周亮[1] 

机构地区：[1]吉林大学物理实验教学中心,吉林长春130012

出　　处：《物理实验》2017年第2期7-9,共3页Physics Experimentation

摘　　要：应用数字电桥采用并联等效或串联等效方法测量了介电材料和软磁材料的特性,考察了BaTiO_3材料的复电容率及MnZn铁氧体材料的复数磁导率随频率的变化规律.The characteristics of dielectric material and magnetically soft material were measured by digital bridge adopting the method of parallel equivalent or series equivalent.The changes of the complex permittivity of BaTiO3 and the complex permeability of MnZn ferrite with frequency were studied.

关 键 词：数字电桥 电容率 磁导率 BATIO3 MNZN铁氧体 

分 类 号：O441[理学—电磁学]