| 压电声透通信的研究进展* |
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| 引用本文： | 余紫莹,吴鸣,许勇,杨军. 压电声透通信的研究进展*[J]. 应用声学, 2013, 32(5): 419-424 |
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| 作者姓名： | 余紫莹 吴鸣 许勇 杨军 |
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| 作者单位： | 中国科学院声学研究所噪声与振动重点实验室、通信声学实验室 北京 100190,中国科学院声学研究所噪声与振动重点实验室、通信声学实验室 北京 100190,中国科学院声学研究所噪声与振动重点实验室、通信声学实验室 北京 100190,中国科学院声学研究所噪声与振动重点实验室、通信声学实验室 北京 100190 |
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| 基金项目： | 国家自然科学基金项目;国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 由于电磁屏蔽效应，传统的无线通信技术受限于金属障碍物的遮挡而无法应用。压电声透通信能够克服电磁无线通信方式的这一缺陷，在不破坏金属障碍物物理结构的前提下，通过声波穿透障碍物实现通信。本文在介绍金属隔物通信的基本原理和实现方式的基础上，总结阐述了压电声透通信目前国内外的研究进展，包括传输系统模型的建立、参数的设计、系统的搭建以及该技术中独特的能量传输方式，最后对影响压电声透通信系统性能的因素进行了分析。
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| 关 键 词： | 金属障碍物，声波，压电换能器，声透通信，超声 |
| 收稿时间： | 2013-06-19 |
| 修稿时间： | 2013-08-23 |
Progress in Penetration-free Piezoelectric Acoustic Communication through Metal Barriers |
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| YU Ziying,WU Ming,XU Yong and YANG Jun. Progress in Penetration-free Piezoelectric Acoustic Communication through Metal Barriers[J]. Applied Acoustics(China), 2013, 32(5): 419-424 |
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| Authors: | YU Ziying WU Ming XU Yong YANG Jun |
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| Affiliation: | Key Laboratory of Noise and Vibration Research and Communication Acoustic Laboratory, Institute of Acoustics, Chinese Academy of Sciences,Key Laboratory of Noise and Vibration Research and Communication Acoustic Laboratory, Institute of Acoustics, Chinese Academy of Sciences,Key Laboratory of Noise and Vibration Research and Communication Acoustic Laboratory, Institute of Acoustics, Chinese Academy of Sciences,Key Laboratory of Noise and Vibration Research and Communication Acoustic Laboratory, Institute of Acoustics, Chinese Academy of Sciences |
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| Abstract: | The Faraday shielding makes traditional wireless electromagnetic radiation through metal barriers ineffective. Co-axially aligned piezoelectric transducers could transmit signals through metal walls in the form of acoustic waves. By using this promising technique, data transmission could be achieved without physical penetrations. In this paper, principles and implementation methods of nondestructive communication through metal channels are introduced. Recent progress in penetration-free piezoelectric acoustic communication through metal barriers is reviewed, including system model, parameter design, practical applications as well as special power harvesting techniques in the system. Finally, influencing factors on piezoelectric acoustic communication system performances are investigated. |
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| Keywords: | Metal barriers Acoustic waves Piezoelectric transducer Acoustic communication Ultrasound |
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