Wireless piezoelectric acoustic-electric power feedthru

被引：19

作者：

Bao, Xiaoqi ^{[1
]}

Doty, Benjamin J. ^{[1
]}

Sherrit, Stewart ^{[1
]}

Badescu, Mircea ^{[1
]}

Bar-Cohen, Yoseph ^{[1
]}

Aldrich, Jack ^{[1
]}

Chang, Zensheu ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

来源：

SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2007, PTS 1 AND 2 | 2007年 / 6529卷

关键词：

piezoelectric devices; acoustic wave; electric power supply; wireless power feed; pressure vessels;

D O I：

10.1117/12.716429

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

There are numerous engineering applications where there is a need to transfer power and communication data thru the walls of a structure. A piezoelectric acoustic-electric power feedthru system was developed in this reported study allowing for wireless transfer of electric power through a metallic wall using elastic waves. The technology is applicable to the transfer of power for actuation, sensing and other tasks inside sealed containers and vacuum/pressure vessels. A network equivalent circuit including material damping loss was developed to analyze the performance of the devices. Experimental test devices were constructed and tested. The power transfer capability and the transfer efficiency were measured. A 100W feed though capability with 38 mm diameter device and 88% transmission efficiency were demonstrated. Both analytical and experimental results are presented and discussed in this paper.

引用

页数：7

共 5 条

[1] Power loss consideration in wireless piezoelectric acoustic-electric power feedthru [J].

Chang, Zensheu ;

Bao, Xiaoqi ;

Doty, Benjamin J. ;

Sherrit, Stewart ;

Bar-Cohen, Yoseph ;

Badescu, Mircea ;

Aldrich, Jack .

SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2007, PTS 1 AND 2, 2007, 6529

[2] Transmitting electric energy through a metal wall by acoustic waves using piezoelectric transducers [J].

Hu, YT ;

Zhang, XS ;

Yang, JS ;

Jiang, Q .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2003, 50 (07) :773-781

[3] Efficient electromechanical network models for wireless acoustic-electric feed-throughs [J].

Sherrit, S ;

Badescu, M ;

Bao, XQ ;

Bar-Cohen, Y ;

Chang, ZS .

SMART STRUCTURES AND MATERIALS 2005: SMART SENSOR TECHNOLOGY AND MEASUREMENT SYSTEMS, 2005, 5758 :362-372

[4]

Sherrit S, 1999, ULTRASON, P921, DOI 10.1109/ULTSYM.1999.849139

[5] Studies of acoustic-electric feed-throughs for power transmission through structures [J].

Sherrit, Stewart ;

Doty, Benjamin ;

Badescu, Mircea ;

Bao, Xiaoqi ;

Bar-Cohen, Yoseph ;

Aldrich, Jack ;

Chang, Zensheu .

SMART STRUCTURES AND MATERIALS 2006: INDUSTRIAL AND COMMERCIAL APPLICATIONS OF SMART STRUCTURES TECHNOLOGIES, 2006, 6171

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