Vibration-based energy extraction for sensor powering: design, analysis, and experimental evaluation

Robert X. Gao; Yong Cui

doi:10.1117/12.599979

17 May 2005 Vibration-based energy extraction for sensor powering: design, analysis, and experimental evaluation

Robert X. Gao, Yong Cui

Proceedings Volume 5765, Smart Structures and Materials 2005: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems; (2005) https://doi.org/10.1117/12.599979
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

This paper presents the design, analysis, and experimental verification of a piezoelectric device that extracts energy from low-level vibrations. Such a device may be configured as a new source of power supply to operate wireless sensor networks. A millimeter-sized, non-uniformly shaped beam consisting of two piezoelectric layers is proposed as the key component of the device. An analytical model of the beam is established and used to predict the dynamic response of the beam and subsequently, its power output, when it is subject to vibration inputs. Through a coupled-field analysis, the coupling between the mechanical and electrical domains of the energy extraction device is analyzed. Simulations and experiments on a vibration shaker have shown that, compared with the rectangular beam design that has been traditionally used, the new design has increased the energy extraction capability of the beam by as much as 70%. In addition to beam design, issues related to device packaging are also addressed in the paper.

Citation Download Citation

Robert X. Gao and Yong Cui "Vibration-based energy extraction for sensor powering: design, analysis, and experimental evaluation", Proc. SPIE 5765, Smart Structures and Materials 2005: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, (17 May 2005); https://doi.org/10.1117/12.599979

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