微型屏蔽线圈式的磁电效应测试方法研究  

A miniature dynamic magnetoelectric test method by shielding coil

作　　者：施展[1] 黄群[1] 徐明月[1] 刘兴军[1] 

机构地区：[1]厦门大学材料学院,福建厦门361005

出　　处：《电子元件与材料》2017年第7期62-65,共4页Electronic Components And Materials

摘　　要：磁电效应是施加磁场产生电极化的物理效应,动态法测量磁电转换系数,是测量磁电材料的磁电效应的一类主要方法。本文尝试设计了一种屏蔽线圈式的微型磁电测试方法,改变了以往的电磁屏蔽方式,从屏蔽样品改为屏蔽线圈,并采用单线圈的设计,从而扩大了样品空间,提供一种可以微型化,便于嵌入低温系统的动态法磁电效应测试方法。Magnetoelectric effect is the effect that applied magnetic field induces an electric polarization. The dynamic method is the main test method of magnetoelectric coefficient. Here, this article attempted to design a miniature test system by shielding coil. In this design, shielding method was changed from sample-shielding to coil-shielding and the coil was changed from dual-coils to single-coil. After changing, the sample space is enh anced obviously, while the test system size is very small. This study provides a miniature dynamic magnetoelectric test method which can be easily embedded into general cryogenic system.

关 键 词：磁电效应 测试方法 动态法 屏蔽 微型测试系统 低温系统 

分 类 号：O482.5[理学—固体物理]