| 邓明晰,吕霞付,蔡绍皙.压电晶体-液体-固体声波导中叉指换能器对导波的激发研究[J].,1999,18(3):14-21 |
| 压电晶体-液体-固体声波导中叉指换能器对导波的激发研究 |
| Analysis of the guided waves generated by an interdigital transducer in the waveguide of piezoelectric crystal-liquid-isotropic solid |
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| 中文摘要: |
| 本文对压电晶体－液体－各向同性固体结构的声波导中叉指换能器所激发的导波进行了理论 研究和数值分析，给出了导波的相速度、叉指换能器激发导波的机电耦合系数与液体层归一化厚度、 晶体取向之间的关系曲线。同时，还探讨了声波导中的位移场和电势场分布。 |
| 英文摘要: |
| In this article theoretical analyses and numerical computation are performed for the guided waves generated by an interdigital transducer (IDT) in the waveguide consisting of piezoelectric crystal-liquid-isotropic solid. The curves of both the guided wave phase velocities and the IDT mechanico-electrical coupling coefficients as functions of normalized thickness of liquid and crystal orientation are presented, and the distribution of the displacement and potelltial fields in the waveguide is also discussed. |
| DOI：10.11684/j.issn.1000-310X.1999.03.004 |
| 中文关键词: 声波导 导波 又指换能器 界面有效介电常数 |
| 英文关键词: : Waveguide Guided wave Interdigital transducer (IDT) Effective permittivity at the interface |
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