Referenced Items are not available for this document.
A piezoelectric MEMS vibration energy harvester with PMN-PT single material has been developed, which can convert low-level vibration energy into electrical energy. Compared with the conventional piezoelectric material, the PMN-PT single crystal has a higher coupling coefficient and electromechanical coefficient, which can improve the conversion efficiency of the power generating device. The designed device consists of a composite cantilever beam and an Ni proof mass, which is fabricated using UV-LIGA technology. Test results show that the fabricated vibration energy harvester can generate a maximum output power of 2.704 W with a 2.08 VP-P output voltage, at a resonant frequency of 237.4 Hz and 1.0g acceleration level.
Published in:
Electronics Letters
(Volume:48
,
Issue:
13
)
Date of Publication: June 21 2012
- Page(s):
- 784 - 786
- ISSN :
- 0013-5194
- INSPEC Accession Number:
- 12786698
- Digital Object Identifier :
- 10.1049/el.2012.1419
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 21 June 2012
- Issue Date :
- June 21 2012
- Sponsored by :
- Institution of Engineering and Technology
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