两种由薄片式压电元件构成的换能器对比测试  

Comparison test of two transducers composed of thin-sheet piezoelectric panel

作　　者：吴建奇[1,2] 吴彬 王军 刘志明[3] WU Jianqi;WU Bin;WANG Jun;LIU Zhiming(School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;The Key Laboratory of Environmental Geotechnical and Engineering Disaster Control of Jiangxi Province,Ganzhou 341000,Jiangxi,China;College of Architecture and Civil Engineering,Wenzhou University,Wenzhou 325035,Zhejiang,China)

机构地区：[1]江西理工大学土木与测绘工程学院,江西赣州341000 [2]江西省环境岩土与工程灾害控制重点实验室,江西赣州341000 [3]温州大学建筑工程学院,浙江温州325035

出　　处：《江西冶金》2021年第6期74-82,共9页Jiangxi Metallurgy

基　　金：国家自然科学基金资助项目(51768025)。

摘　　要：为简化压电换能器制作工艺和减小结构尺寸,利用薄片式压电元件良好的力电转换特性,根据压电换能器结构不同的能量转换方式,设计并制备了冲击型和弯曲型两种换能器。通过建立对比试验,分析了两种结构的工作原理以及换能器的发电性能,并研究了加载条件的变化对换能器输出性能的影响规律。测试结果表明:弯曲型换能器在有限位移下,低频率加载时的发电性能和工作稳定性强于冲击型换能器。最后,根据对比结果提出了一种弯曲型换能器的有效封装结构。In order to simplify the fabrication process and reduce the structural size of piezoelectric transducers,two transducers,impact type and bending type,were designed and prepared according to the different energy conversion modes of piezoelectric transducers.By establishing a comparative test,the working principle of the two structures and the power generation performance of the transducer were analyzed,and the influence law of the change of loading conditions on the output performance of the transducer was studied.The test results show that the power generation performance and working stability of the bending transducer were better than those of the impact transducer under limited displacement and low frequency loading.Finally,according to the comparison results,an effective package structure of bending type transducer was provided.

关 键 词：压电发电 力电转换 薄片式压电元件 压电换能器 封装结构 

分 类 号：TN384[电子电信—物理电子学]