文章摘要
郝浩琦,夏铁坚.一种拓宽匹配层换能器带宽的方法[J].,2009,28(2):111-115
一种拓宽匹配层换能器带宽的方法
A method for broadening the bandwidth of matching layer transducer
  
中文摘要:
      本文介绍了一种拓宽匹配层换能器带宽的方法,通过单端激励以同时激发换能器的奇次和偶次谐波,以此来达到拓宽匹配层换能器带宽的目的。运用有限元软件ANSYS进行了建模分析计算,对其设计过程、测量结果作了分析介绍。样品换能器在10kHz~30kHz的频段内,发送电压响应起伏为±3.3dB。
英文摘要:
      This paper presents a method for broadening bandwidth of matching layer transducer.Both odd modes and even modes are excited simultaneously by one-side exciting. By this way,the band of the matching layer transducer can achieve two octaves. The FEM(finite element method)is used to optimize the dimensions of the transducer. The paper describes the design process and the measure results.A transducer is designed with its bandwidth from 10kHz to 30kHz,and the fluctuation of Transmitting Voltage Response is±3.3dB.
DOI:10.11684/j.issn.1000-310X.2009.02.006
中文关键词: 宽带  换能器  匹配层  奇次模  偶次模
英文关键词: Broadband  Transducer  Matching layer  Even and odd modes
基金项目:
作者单位
郝浩琦 杭州应用声学研究所 
夏铁坚 杭州应用声学研究所 
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