文章摘要
党长久,杨玉瑞,李明轩.对2-2型压电复合材料横波换能器产生的纵波特性的研究[J].,1996,15(4):10-15
对2-2型压电复合材料横波换能器产生的纵波特性的研究
Investigation of the p-wave produced by a piezocomposite transverse transducer with 2-2 connectivity
  
中文摘要:
      在固体测量中,横波换能器所产生的波列中常伴随有纵波.认识纵波产生的原因可以解释横被测试中出现的现象,以及为抑制纵被提供有效的方法.本文利用实验研究的方法,用一对纵波偶极子换能器作对比实验,分析了2-2型压电复合材料厚度切变模换能器产生纵波的机理.发现这是一种伴随着晶片厚度切变振动而产生的“偶极子”纵波,并由此解释了这种纵波的伴随性、频率特性及其首波与横波首波位相相反等问题.
英文摘要:
      In solid, a trasverse transducer motivates a waveform ofen containing a pwave. Analysis of how the p-wave is produced can help to interpret some phenomena in measurements and provide effective means to restrain the p-wave. In this paper, by comparing with the wave forms actuated by a pair of dipole transducers, the characteristics of the p-wave produced by a 2-2 piezocomposite transducer vibrating in the thickness shear mode are experimentally investigated. It is discovered that the p-waves are n diPole’ waves which accompany the vibrations of a thickness shear piezoelectric plate. There-after, the accompanying and frequency characteristics of the p-waves l and the antiphase between the respective first circle of the p-wave and S-wave are interpreted in terms of the "dipole" nature of the p-waves.
DOI:10.11684/j.issn.1000-310X.1996.04.004
中文关键词: 2-2型压电复合材料  横波换能器  伴随纵波
英文关键词: 2-2 piezocomposites  Transverse transducers  Accompanying p-waves
基金项目:国家自然科学基金
作者单位
党长久 中国科学院声学研究所!北京
100080 
杨玉瑞 中国科学院声学研究所!北京
100080 
李明轩 中国科学院声学研究所!北京
100080 
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