文章摘要
林书玉.考虑压电效应时压电陶瓷圆形振子的耦合振动[J].声学技术,1994,(1):15~20
考虑压电效应时压电陶瓷圆形振子的耦合振动
Coupled vibration of piezoelectric ceramic circular vibrators as the piezoelectric effect considered
投稿时间:1993-07-21  修订日期:1993-11-06
DOI:
中文关键词: 压电效应  耦合振动  共振频率  电导纳  机电耦合系数  机械耦合系数
英文关键词: Piezoelectric effect  coupled vibration  resonant frequency  electric admittance  electro-mechanical coupling coefficient  mechanical coupling coefficient
基金项目:
作者单位
林书玉 陕西师范大学应用声学研究所, 西安 710062 
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中文摘要:
      在考虑压电效应的情况下,本文对压电陶瓷圆形振子的耦合振动进行了研究。根据压电陶瓷圆形振子的运动方程及压电方程,通过引入振子不同振动模式之间的机械耦合系数,分析了振子轴向及径向振动之间的耦合关系,得出了振子耦合振动的电导纳表达式,并导出了共振频率方程。与一维理论的结果相比,由本文理论得出的振子共振频率与实际测量值更加符合。
英文摘要:
      The coupled vibration of piezoelectric ceramic disks was studied when the piezoelectric effect is considered. Based on the piezoelectric and motion equations, introducing themechanical coupling coefficient the electric admittance and the frequency equation werederived, the relation between the axial and radial vibrations was analyzed. The resonantfrequencies of the vibrators were computed' Compared with the measured frequencies thecomputed results of this paper are better those computed by one dimensional theory.
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