DocumentCode :
3286932
Title :
Design and testing of piezoelectric energy harvesting devices for generation of higher electric power for wireless sensor networks
Author :
Zhu, Meiling ; Worthington, Emma
Author_Institution :
Dept. of Mater., Cranfield Univ., Cranfield, UK
fYear :
2009
fDate :
25-28 Oct. 2009
Firstpage :
699
Lastpage :
702
Abstract :
This paper reports our design and testing results on the electric output performance of a vibration-based piezoelectric energy harvesting device (PEHD). The PEHD is a cantilever with a sandwich structure and seismic mass attached to the tip. The geometric parameters of the device are based on optimization design with a volume of around 1cm3 and at a targeted resonant frequency of 80-100 Hz. A maximum output power of 370¿W at 15.5 volts into a 325k¿ resistive load is generated at the resonant frequency of 87Hz and under an acceleration of 0.23g. Quite remarkably, this power is a very encouraging power figure that gives the prospect of being able to power a wider range of applications than is currently possible in wireless sensor network.
Keywords :
energy harvesting; piezoelectric devices; power supplies to apparatus; wireless sensor networks; cantilever; electric power generation; frequency 80 Hz to 100 Hz; power 370 muW; resistance 325 kohm; sandwich structure; seismic mass; vibration-based piezoelectric energy harvesting devices; voltage 15.5 V; wireless sensor networks; Design optimization; Electrodes; Materials testing; Piezoelectric devices; Piezoelectric materials; Power generation; Resistors; Sandwich structures; Voltage; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensors, 2009 IEEE
Conference_Location :
Christchurch
ISSN :
1930-0395
Print_ISBN :
978-1-4244-4548-6
Electronic_ISBN :
1930-0395
Type :
conf
DOI :
10.1109/ICSENS.2009.5398559
Filename :
5398559
Link To Document :
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