文章摘要
黄振伟,傅波,穆飞.夹心式压电超声换能器串并联传输矩阵设计法[J].,2008,27(5):395-400
夹心式压电超声换能器串并联传输矩阵设计法
Piezoelectric sanawich transducer design via mixed transfer matrix method
  
中文摘要:
      将压电环片等效为一有源六端网络,考虑预应力螺栓对系统建模的影响,并将其等效为一机械四端网络,基于串并联传输矩阵法,建立了Langevin换能器的总体网络模型,导出其总传输矩阵,进而推算出换能器的共振频率。结果显示该方法比普遍采用的Langevin换能器传输矩阵设计法有更高的参量计算精度。此方法也为分析换能器其它电学参数提供了方便。
英文摘要:
      The pre-stressed bolt and the piezo-element are equivalent respectively to a four-pole element description and a six-pole element description in the modeling of the Lan- gevin transducer.Based on the mixed transfer matrix method,the four-pole element de- scription of the Langevin transducer is built up and the total transfer matrix relation is de- rived.The resonance frequency of the transducer is then calculated.Experimental result shows that the mixed transfer matrix is a better vibration model of the Langevin piezoelec- tric transducer than the conventional.This method may also be applied in the analysis of other electrical characteristics of piezoelectric transducers.
DOI:10.11684/j.issn.1000-310X.2008.05.014
中文关键词: Langevin换能器  传输矩阵法  四端网络  预应力螺栓
英文关键词: Langevin transducer  Transfer matrix methods  Four-pole description  Prestressed bolt
基金项目:
作者单位
黄振伟 四川大学制造科学与工程学院,成都,610065 
傅波 四川大学制造科学与工程学院,成都,610065 
穆飞 四川大学制造科学与工程学院,成都,610065 
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