| 垂直于电场和极化方向辐射声波的压电复合材料 |
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| 引用本文： | 党长久,杨玉瑞,李明轩.垂直于电场和极化方向辐射声波的压电复合材料[J].应用声学,1998,17(2):11-15. |
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| 作者姓名： | 党长久 杨玉瑞 李明轩 |
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| 作者单位： | 中国科学院声学研究所!北京，100080，中国科学院声学研究所!北京，100080，中国科学院声学研究所!北京，100080 |
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| 基金项目： | 国家自然科学基金，中国科学院研究所赞助项目 |
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| 摘 要： | 本文介绍了一种２－２型压电复合材料，使其中的极化方向和所加电场方向相同，并垂直于该方向而辐射声波。
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| 关 键 词： | 压电复合材料 极化方向 换能器 辐射声波 |
A piezocomposite material radiating acoustic waves perpendicularly to its coinciding electric fleld and poling direction |
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| Dang Changjiu,Yang Yurui and Li Mingxuan.A piezocomposite material radiating acoustic waves perpendicularly to its coinciding electric fleld and poling direction[J].Applied Acoustics,1998,17(2):11-15. |
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| Authors: | Dang Changjiu Yang Yurui and Li Mingxuan |
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| Institution: | Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080;Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080;Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | Presented in this paper is a 2-2 piezocomposite with its poling direction thesame as that of the imposed electric field, perpendicular to which acoustic waves areradiated. Due to the concurrent length and thickness mode vibrations, the compositeplate may different frequencies of the two waves9 each of them may be obtained aloneby applying a high-pass filter or a low-pass one to the receiver. Also indicated in thispaper are the antiphase characteristic between the first cycles of the two waves and thevariation of the amplitudes of the two waves versus the angle between the transmittingand receiving transducers. |
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| Keywords: | 2-2 Piezocomposite Dual vibration modes Dual frequencies |
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