Piezoelectric single crystal power generator for low frequency vibrating machines and structures
Piezoelectric single crystal power generator for low frequency vibrating machines and structures
复制标题
用于低频振动机器和结构的压电单晶发电机
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
P. Gandhi
中科院分区：
文献类型：
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作者：
R. Shukla;L. Lim;P. Gandhi
Relaxor-based ferroelectric Pb(Zn<inf>1/3</inf>Nb<inf>2/3</inf>)O<inf>3</inf> -(6–7)%PbTiO<inf>3</inf> single crystal of [110]<sup>L</sup>×[001]<sup>T</sup>(P) cut exhibits high d<inf>31</inf> and low s<sup>E</sup><inf>11</inf> values, making it candidate for piezoelectric energy harvesting. In this work, a cantilever piezoelectric power generator using this crystal cut has been designed and fabricated. The device is designed for 110 Hz of resonance. The peak voltage generated from the prototype device at resonance is ≈ 40 V/g, g being the acceleration due to gravitation. The maximum power harvested is about 1 mW/g, which increases with the square of the acceleration. Both analytical and experimental results of the device are presented and discussed.
