Output power of piezoelectric MEMS vibration energy harvesters under random oscillations

被引：5
|
作者：
Kariya, K. [1 ]
Yoshimura, T. [1 ]
Murakami, S. [2 ]
Fujimura, N. [1 ]
机构：
[1] Osaka Prefecture Univ, Naka Ku, Sakai, Osaka 5998531, Japan
[2] Technol Res Inst Osaka Prefecture, Izumi, Osaka 5941157, Japan
来源：
14TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2014) | 2014年 / 557卷
关键词：
THIN-FILM; GENERATOR;
D O I：
10.1088/1742-6596/557/1/012101
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Environmental vibrations include random oscillations of different frequencies and amplitudes. Energy harvesters recover the energy associated with these vibrations. Properties of the vibrations and output power are characterized for cantilever-type piezoelectric vibration energy harvesters using (100)-orientated BiFeO3 films subject to both ideal and random oscillations. The displacement and output power under random oscillations were smaller than those under ideal oscillations. This decrease originates with the decreasing acceleration of the fundamental wave with the spurious component having little influence on the resonance response.
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页数：5
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