关于介电常数教学新方法的探索研究  

THE STUDY ON NEW TEACHING METHOD FOR DIELECTRIC CONSTANT

作　　者：吴喆[1] 彭坤[1] 梁实[1] 魏立云 曾葆青[1] 

机构地区：[1]电子科技大学物理电子学院,四川成都610054

出　　处：《物理与工程》2016年第4期100-103,共4页Physics and Engineering

基　　金：电子科技大学教学改革研究项目(2015XJYYB019);真空电子特色专业教学团队建设项目(A10985210237 01008)

摘　　要：为加深本科生对在大学物理课程及多项电子类专业课需用到的重要参数——介电常数的理解,我们组织本科生组成了创新团队,采用家用微波炉研究了不同的建筑材料,实验结果直观地反映出了高频微波加热和电介质损耗之间的关系.采用谐振腔微扰法对几种常用的建筑材料进行了介电常数的定量测量,为检测建筑材料的质量和提高材料室内通信性能提供了依据.这项研究加深了本科生对复介电常数的理解,并为他们将来从事电子工程类工作打下良好的基础.Dielectric constant is an important parameter in college physics and many electronic courses.To enhance the understanding of dielectric constant,an innovation team of undergraduates was built up to study microwave dielectric properties for different building materials with a household microwave oven.The results indicate the relationship between microwave heating and dielectric loss.The quantitative measurement of dielectric constants for several common building material based on perturbation method,provides the testing basis to improve the performance for indoor communication of building materials.This study enhances the students＇ comprehension of complex dielectric constant.It also lays the first stone for their further work in electronic engineering.

关 键 词：介电常数 建筑材料 微波炉 谐振腔微扰法 

分 类 号：G642[文化科学—高等教育学] O487-4[文化科学—教育学]