压电单晶悬臂梁的输出电压测试分析  

Analysis and experiments on the output voltage of piezoelectric unimorph cantilever

作　　者：王青萍[1,2] 范跃农[3] 王骐[1] 姜胜林[2] 

机构地区：[1]湖北第二师范学院物理与电子信息学院,湖北武汉430205 [2]华中科技大学电子科学与技术系教育部敏感陶瓷工程研究中心,湖北武汉430074 [3]景德镇陶瓷学院机电系,江西景德镇333403

出　　处：《电子元件与材料》2011年第8期12-15,共4页Electronic Components And Materials

基　　金：广东省教育部产学研结合资助项目(No.2010B090400447)

摘　　要：通过有限元分析软件ANSYS对压电单晶悬臂梁进行仿真分析,再经实验,研究了基板材质、粘结胶、激振力加速度和激振频率对输出电压的影响。结果表明,弹性模量较大的基板能提高输出电压,采用不导电胶比导电胶的输出电压大;压电悬臂梁对激振频率有很好的选择性,当频率为33 Hz时,输出电压为25.3 V;这有助于优化器件结构,设计出理想的压电能量收集器件。The piezoelectric unimorph cantilever was simulated through the finite element analysis software ANSYS and experiments on it were taken out.The effects of the substrate materials,the glue,the acceleration and frequency of the exciting force on the output voltage were analyzed.The results show that the output voltage is improved by the substrate with larger elastic module,and the substrate with non-conductive glue can produce higher voltage than that with conductive.In addition,the piezoelectric cantilever has fine frequency selectivity.The output voltage can reach 25.3 V when the frequency is 33 Hz.These results are beneficial to optimizing the structures of the devices and designing the ideal piezoelectric energy harvester.

关 键 词：压电单晶悬臂梁 能量收集器 有限元仿真 开路电压 

分 类 号：TM305[电气工程—电机]