磁流变弹性体压阻特性实验装置的设计与实验研究  

Design and experimental study of an experimental device for piezoresistivity of magnetorheological elastomers

作　　者：叶伟强[1] 邓益民[1] 王威[1] 

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211

出　　处：《传感器与微系统》2011年第3期43-45,共3页Transducer and Microsystem Technologies

基　　金：浙江省教育厅学科带头人专项基金资助项目

摘　　要：磁流变弹性体作为一种新型的智能材料,对其压阻特性的应用研究国内外还鲜有报道。通过建立一种磁流变弹性体测试的实验装置,对实验室制备的磁流变弹性体的压阻特性进行了不同情况下的实验研究。结果表明:磁流变弹性体的电导率对压力变化有着敏感的响应,并在一定压力范围内压阻特性线性关系明显。厚度不同和磁场的施加对压阻特性的灵敏度及一定压力范围内的线性关系均无明显影响。Magnetorheological elastomers（MREs） is a new type of smart materials.However,its piezoresistive property has seldom been studied and reported.Aiming at this problem,a test rig is developed.Some experimental studies on the MREs piezoresistivity have done under different circumstances,where the MREs were made by our own laboratory.The results show that the conductivity of the MREs respond sensitively to the applied pressure change,and a linear relationship between the resistivity of the MREs and the applied pressure can be observed within a certain pressure range.The thickness and the exerted magnetic field don＇t have significant effect on the piezoresistivity of the MREs,as well as on its linearity.

关 键 词：磁流变弹性体 压阻特性 电导率 灵敏度 线性 

分 类 号：TB381[一般工业技术—材料科学与工程]