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新型复合结构超声换能器的研制
引用本文:刘晓宙,龚秀芬,陆荣荣.新型复合结构超声换能器的研制[J].上海交通大学学报,2000,34(12):1733-1737.
作者姓名:刘晓宙  龚秀芬  陆荣荣
作者单位:1. 上海交通大学船舶与海洋工程学院,上海200030
2. 南京大学近代声学国家重点实验室,南京210093
摘    要:为提高超声换能器的性能,提出一种新型的复合结构超声换能器,这种结构的超声换能器在同一只换能器中使用两种压电材料--压电陶瓷(PZT)和压电薄膜(PolyyinylideneDifluoride,PVDF),前者用于发射;后者用于接收.应用KLM(Krimholtz,LeedomandMattaei)机电耦合等效电路模型对这种换能器作了理论上的分析,并实际制作了这种复合结构的超声换能器.理论和实验结果均表明,该复合结构的超声换能器具有较小的输入功率损耗和相对较短的回响.

关 键 词:复合结构  超声换能器  KLM模型
文章编号:1006-2467(2000)12-1733-05
修稿时间:1999年12月9日

Design and Fabrication of New Kind of Complex Ultrasonic Transducer
LIU Xiao zhou ,GONG Xiu fen ,LU Rong rong.Design and Fabrication of New Kind of Complex Ultrasonic Transducer[J].Journal of Shanghai Jiaotong University,2000,34(12):1733-1737.
Authors:LIU Xiao zhou  GONG Xiu fen  LU Rong rong
Institution:LIU Xiao zhou 1,GONG Xiu fen 2,LU Rong rong 2
Abstract:In order to improve the performance of ultrasonic transducer, a new kind of complex ultrasonic transducer was advanced. Two kinds of piezoelectric material are used in this transducer, in which PZT is used as transmitter and PVDF (Polyvinylidene Difluoride) is used as receiver. Using KLM (Krimholtz, Leedom and Mattaei) equivalent circuit model, this kind of transducer was analyzed theoretically. Based on the theoretical analysis and calculation, the complex ultrasonic transducer was designed and fabricated. The theoretical and experimental results show that this kind of transducer has low input power loss and relatively short pulse echo.
Keywords:complex structure  ultrasonic transducer  KLM (Krimholtz  Leedom and Mattaei) modT
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