DocumentCode
3039518
Title
A MEMS-based wideband piezoelectric energy harvester system using mechanical stoppers
Author
Liu, Huicong ; Lee, Chengkuo ; Kobayashi, Takeshi ; Tay, Cho Jui ; Quan, Chenggen
Author_Institution
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
fYear
2011
fDate
5-7 Dec. 2011
Abstract
A piezoelectric MEMS energy harvester (EH) system with top- and bottom-stoppers can response to vibrations with frequency ranging from 30 Hz to 48 Hz when the top- and bottom-stopper distances are 0.75 mm and 1.1 mm, respectively, and the acceleration of vibration is 0.6 g. By adjusting the stopper distance, the operating bandwidth is broadened from the initial mechanical resonance of the PZT EH cantilever at 36Hz to various extent. Larger acceleration of vibration also leads to wider operating bandwidth.
Keywords
energy harvesting; micromechanical devices; piezoelectric transducers; EH; MEMS-based wideband piezoelectric energy harvester system; PZT EH cantilever; distance 0.75 mm to 1.1 mm; frequency 30 Hz to 48 Hz; mechanical stoppers; vibration; Acceleration; Bandwidth; Metals; Micromechanical devices; Power generation; Resonant frequency; Vibrations;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting (IEDM), 2011 IEEE International
Conference_Location
Washington, DC
ISSN
0163-1918
Print_ISBN
978-1-4577-0506-9
Electronic_ISBN
0163-1918
Type
conf
DOI
10.1109/IEDM.2011.6131640
Filename
6131640
Link To Document