基于新型介电弹性体平行板电容器的研究  

Study on parallel plate capacitor based on a new type of dielectric elastomer

作　　者：刘晓华[1] 惠安峰[2] 陶佰睿[3] 

机构地区：[1]齐齐哈尔大学理学院,黑龙江齐齐哈尔161006 [2]西安铁路局工务机械段,陕西西安710021 [3]齐齐哈尔大学通信与电子工程学院,黑龙江齐齐哈尔161006

出　　处：《电子元件与材料》2012年第1期44-46,共3页Electronic Components And Materials

基　　金：黑龙江省教育厅科研资助项目(No.11541398);齐齐哈尔大学青年教师科研启动重点资助项目(No.210K-Z02)

摘　　要：为了研究具有传感功能的可变电容器,采用新型介电弹性体材料制成平行板电容器。研究了该电容器充放电前后的外形变化及影响电容大小的因素。结果表明:在高压充放电前后,电容器的极板面积和两电极板间距离都发生了明显的变化;电容随着外加电压的增大而增大;在外加电压为6 000 V的条件下,电容随着材料预拉伸的增大出现一极大值,随后又减小,即在变化过程中存在拐点;另外,电容器的电极材料用石墨粉时要比用导电胶时电容大。A new type of dielectric elastomer material was used into a parallel plate capacitor for the research of a sensing function variable capacitor. The difference of capacitor shape before and after discharge and the influence of the capacitance were studied. As a result, the areas and distance of two electrodes are changed obviously after discharge and the capacitance increases with the increasing of external voltage. A maximum capacitance value is obtained with the pre-stretching of the material and an inflection point is found in the changing process corresponding to 6 000 V external voltage. The capacitance is higher by using the powdered graphite than conductive adhesive as the electrode material.

关 键 词：介电弹性体 平行板电容器 外加电压 预拉伸 

分 类 号：O484.4[理学—固体物理]