摘要
研究了压电换能器在串、并联谐振频率附近工作时的特性.采用等效电路变换的方法,推导出了换能器在串联、并联谐振频率附近时,串联、并联匹配电感参数以及有功电阻的表达式.结果表明电感匹配可以提高有效机电耦合系数.
An analysis is made on the properties of the piezoelectric transducer working near series and parallel resonant frequency.The results prove that matching inductance of the piezoelectric can improve the effective electromechanical coupling coefficient by applying the transformation of equivalent circuit near parallel and series resonance frequency to deduce parallel matching inductance parameters and the expression of active resistance.
出处
《纺织高校基础科学学报》
CAS
2010年第3期368-371,共4页
Basic Sciences Journal of Textile Universities
基金
陕西省教育厅项目(112D026)
关键词
压电换能器
谐振频率
匹配电感
有效机电耦合系数
piezoelectric transducer
resonance frequency
matching inductance
effective electromechanical coupling coefficient
