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Author Xianzhi Dai ♦ Yumei Wen ♦ Ping Li ♦ Jin Yang ♦ Xiaofang Jiang
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Magnetostriction ♦ Piezoelectric transducers ♦ Vibrations ♦ Magnetic flux ♦ Magnetic circuits ♦ Magnetic analysis ♦ Prototypes ♦ Structural beams ♦ Laminates ♦ Magnetic fields
Abstract An energy harvester is presented to convert ambient mechanical vibration into electrical energy. The harvester consists of a cantilever beam, a magnetic circuit and a magnetostrictive/piezoelectric laminate magnetoelectric (ME) transducer. The magnetic circuit is arranged on the free end of the beam and produces a concentrated flux gradient. When the harvester is excited, the magnetic circuit moves relative to the ME transducer. The ME transducer undergoes magnetic field variations and produces a power output. The nonlinear vibration performances of the harvester are studied using the Lindstedt-Poincaré method, and the electrical-output performances of the harvester at resonance are analyzed. A prototype has been fabricated and tested. The experimental results are in agreement with the analytical results. The prototype produces a power of 2.11 mW for an acceleration of 1 g at frequency of 51 Hz.
Description Author affiliation: College of Optoelectronic Engineering, Chongqing University, The Key Laboratory for Optoelectronic Technology & Systems, Ministry of Education of China, China (Xianzhi Dai; Yumei Wen; Ping Li; Jin Yang; Xiaofang Jiang)
ISBN 9781424445486
ISSN 19300395
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-10-25
Publisher Place New Zealand
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 766.70 kB
Page Count 4
Starting Page 1447
Ending Page 1450

Source: IEEE Xplore Digital Library