| TeO2压电换能器的外部匹配网络设计 |
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| 引用本文： | 李存波,谢本亮.TeO2压电换能器的外部匹配网络设计[J].压电与声光,2011,33(5). |
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| 作者姓名： | 李存波 谢本亮 |
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| 作者单位： | 赣南师范学院物理与电子信息学院,江西赣州,341000 |
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| 基金项目： | 赣南师范学院研究生创新基金资助项目(YCX09B001) |
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| 摘 要： | TeO2晶体作为声光性能优越的材料之一,在设计过程中由于阻抗不能完全匹配及声波在不同声学阻抗的弹性体间传播时,分界面处会发生反射和透射,导致损耗在中间频率处过大,频率特性不稳定；分析TeO2压电换能器的阻抗特性呈容性电抗,所以采用感性的电感器件对其进行外部补偿,可提高换能器的性能.
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| 关 键 词： | 压电换能器 损耗 阻抗匹配 匹配网络 |
Design of the External Matching Network of TeO2 Piezoelectric Transducer |
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| LI Cunbo,XIE Benliang.Design of the External Matching Network of TeO2 Piezoelectric Transducer[J].Piezoelectrics & Acoustooptics,2011,33(5). |
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| Authors: | LI Cunbo XIE Benliang |
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| Affiliation: | LI Cunbo,XIE Benliang(School of Physics and Electronic Information,Gannan Normal University,Ganzhou 341000,China) |
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| Abstract: | The tellurium dioxide(TeO2) crystal is one of the acousto-optic materials with superior acousto-optic performance,however,since the impedance cannot completely matched in the design process and the reflection and transmission occur on the boundary surface when sound waves propagate in the elastomers of different acoustic impedance,lead to the bigger loss in the middle frequency place and not quite stable frequency characteristic.Through analyzing the impedance characteristic of TeO2 piezoelectric transducer... |
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| Keywords: | piezoelectric transducers loss impedance matching matching network |
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