Power loss consideration in wireless piezoelectric acoustic-electric power feedthru

Zensheu Chang; Xiaoqi Bao; Benjamin J. Doty; Stewart Sherrit; Yoseph Bar-Cohen; Mircea Badescu; Jack Aldrich

doi:10.1117/12.716433

19 April 2007 Power loss consideration in wireless piezoelectric acoustic-electric power feedthru

Zensheu Chang, Xiaoqi Bao, Benjamin J. Doty, Stewart Sherrit, Yoseph Bar-Cohen, Mircea Badescu, Jack Aldrich

Proceedings Volume 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007; 652942 (2007) https://doi.org/10.1117/12.716433
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

Piezoelectric acoustic-electric power feedthru devices that are able to transfer electric power through metallic/ferromagnetic wall are investigated. Electric energy is converted to acoustic energy by piezoelectric transducer at one side of the wall. The acoustic wave propagates through the wall and, then, it is converted back to electric energy by another transducer on the other side. For high efficient transmission, it is critical that all the energy loss should be minimized. In addition to the electrical, mechanical and electromechanical loss in the transducers and the thickness of the wall, Lamb (plate) waves are excited by the transducers in the wall and they also result in energy losses. In this study, the energy loss caused by the Lamb waves are analyzed analytically and by finite element simulations. The results and the methods to reduce the loss are presented and discussed in this presentation.

Citation Download Citation

Zensheu Chang, Xiaoqi Bao, Benjamin J. Doty, Stewart Sherrit, Yoseph Bar-Cohen, Mircea Badescu, and Jack Aldrich "Power loss consideration in wireless piezoelectric acoustic-electric power feedthru", Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 652942 (19 April 2007); https://doi.org/10.1117/12.716433

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available