| 低声阻抗复合压电陶瓷的研究及应用 |
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| 引用本文： | 庄咏璆,周建国,易晓星,潘潮.低声阻抗复合压电陶瓷的研究及应用[J].应用声学,1997,16(4):23-26. |
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| 作者姓名： | 庄咏璆 周建国 易晓星 潘潮 |
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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，中国科学院声学研究所!北京，100080 |
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| 摘 要： | 本文研究了我们所配制夹心结构复合压电材料低声阻抗的特性。实验表明，夹心复合压电陶瓷材料的声阻抗，与所用陶瓷材料的种类，气孔率，孔径，样品厚度以及工艺制备过程有关。实验证明，研制特定阻抗的材料是可行的，最后，用研制的新材料成功地应用于混凝土、Ｃ／Ｃ复合材料等非金属材料的超声检测中。
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| 关 键 词： | 复合压电陶瓷 声阻抗 超声换能器 夹心结构 |
Piezoelectric composites with low acoustic impedances and their applications |
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| Zhuang Yongqiu,Zhou Jianguo,Yi Xiaoxing and Pan Chao.Piezoelectric composites with low acoustic impedances and their applications[J].Applied Acoustics,1997,16(4):23-26. |
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| Authors: | Zhuang Yongqiu Zhou Jianguo Yi Xiaoxing and Pan Chao |
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| Institution: | Institute of Acoustics, Academia Sinica, Beijing 10080;Institute of Acoustics, Academia Sinica, Beijing 10080;Institute of Acoustics, Academia Sinica, Beijing 10080;Institute of Acoustics, Academia Sinica, Beijing 10080 |
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| Abstract: | The characteristics of low acoustic impedance in our sandwich piezoelectriccomposites are studied. The results show that acoustic impedance value depends onceramic material, porosity, thickness of sample and their processing. It has also beendemonstrated that manufacturing sandwich piezoelectric composite with spicificacoustic impedance is feasible. Ultrasonic transducers made of our sandwichpiezoelectric composites have been succesfully applied to ultrasonic nondestructivetesting of concrete and carbon-carnon composite. |
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| Keywords: | Piezoelectric composite Acoustic impedance Wide-band ultrasonic transducer |
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