锆钛酸铅(PZT)陶瓷电控弹性的基础研究及其在弹性波拦截中的应用

2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics Pub Date : 2007-05-27 DOI:10.1109/ISAF.2007.4393343

J. Takarada, K. Tahara, H. Ueda, K. Imoto, M. Date, E. Fukada, K. Yamamoto, Y. Tajitsu

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引用次数: 0

摘要

研究了一种通过连接负电容电路来控制压电锆钛酸铅(PZT)陶瓷弹性系数的新技术，该电路具有“负电容”的作用。因此，我们可以通过PZT的软化和硬化机制来实现控制。在此技术的基础上，我们开发了一个简单的实验系统，用于截取频率范围为8 kHz至110 kHz的弹性波。我们确定了实验系统传输损耗的衰减系数，在该频率范围内衰减系数大于10 dB。在频率为91 kHz时，传输损耗的最大衰减因子约为60 dB。

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Basic Studies of Electrically Controlled Elasticity of Lead Zirconate Titanate (PZT) Ceramic and its Application to Intercepting Elastic Waves

We studied a novel technique for controlling the elastic coefficient of a piezoelectric lead zirconate titanate (PZT) ceramic by connecting a negative-capacitance circuit that behaves as a "negative capacitor". Thus, we can realize control through a mechanism in which PZT is softened and hardened. On the basis of this technology, we developed a simple experimental system for intercepting elastic waves in the frequency range from 8 kHz to 110 kHz. We determined the attenuation factor in transmission loss of the experimental system, which was more than 10 dB in this frequency range. The maximum attenuation factor in transmission loss was about 60 dB at a frequency of 91 kHz.

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2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics

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