EIGHT PARAMETRIC RESONANCES IN A MULTI-FREQUENCY WIDE-BAND MEMS PIEZOELECTRIC VIBRATION ENERGY HARVESTER

被引：0
|
作者：
Jia, Yu [1 ,2 ]
Du, Sijun [1 ]
Seshia, Ashwin A. [1 ]
机构：
[1] Univ Cambridge, Nanosci Ctr, Cambridge, England
[2] Univ Chester, Dept Mech Engn, Chester, Cheshire, England
来源：
2016 IEEE 29TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS) | 2016年
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a multi-order parametric resonant MEMS piezoelectric disk membrane, for the purpose of broadening the operational frequency bandwidth of a vibration energy harvester by employing the nonlinearity-induced bandwidth broadening associated with this phenomenon as well as the multi-frequency response associated with the higher orders. The fundamental mode -3dB bandwidth at 2.0 g recorded 55 Hz, while the first parametric resonant peak exhibited 365 Hz and the -3dB of the first 8 orders accumulated to 604 Hz. The membrane parametric resonator also experimentally demonstrated over 3-folds improvement in power density compared to a conventional direct resonator (cantilever), when subjected to band-limited white noise.
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页码：1244 / 1247
页数：4
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