TY - GEN
T1 - A friendly approach to increasing the frequency response of piezoelectric generators
AU - Ben-Yaakov, Sam
AU - Hadar, Gil
AU - Shainkopf, Amit
AU - Krihely, Natan
PY - 2013/8/19
Y1 - 2013/8/19
N2 - A wide bandwidth piezoelectric generator (PZG) was constructed and tested experimentally. The PZG was characterized using chirp and wideband random excitations. The experimental results showed that by proper shaping of an attached cantilever beam it is possible to increase the number of vibration modes of the PZG and, hence, to improve the effectiveness of the energy harvesting as compared with a conventional cantilever PZG configuration. The proposed structure was designed to produce 3 vibration modes, which extend the operation around the frequencies 35Hz, 57Hz and 76Hz. As a result, the bandwidth was widened by a factor of 2.81 as compared with a conventional harvester.
AB - A wide bandwidth piezoelectric generator (PZG) was constructed and tested experimentally. The PZG was characterized using chirp and wideband random excitations. The experimental results showed that by proper shaping of an attached cantilever beam it is possible to increase the number of vibration modes of the PZG and, hence, to improve the effectiveness of the energy harvesting as compared with a conventional cantilever PZG configuration. The proposed structure was designed to produce 3 vibration modes, which extend the operation around the frequencies 35Hz, 57Hz and 76Hz. As a result, the bandwidth was widened by a factor of 2.81 as compared with a conventional harvester.
KW - Harvesting piezoelectric devices
KW - resonant power conversion
UR - https://www.scopus.com/pages/publications/84881398082
U2 - 10.1109/ELNANO.2013.6551994
DO - 10.1109/ELNANO.2013.6551994
M3 - Conference contribution
AN - SCOPUS:84881398082
SN - 9781467346726
T3 - 2013 IEEE 33rd International Scientific Conference Electronics and Nanotechnology, ELNANO 2013 - Conference Proceedings
SP - 349
EP - 353
BT - 2013 IEEE 33rd International Scientific Conference Electronics and Nanotechnology, ELNANO 2013 - Conference Proceedings
T2 - 2013 IEEE 33rd International Scientific Conference Electronics and Nanotechnology, ELNANO 2013
Y2 - 16 April 2013 through 19 April 2013
ER -