Laser-machined piezoelectric cantilevers for mechanical energy harvesting.
IEEE Trans Ultrason Ferroelectr Freq Control
; 55(9): 1900-5, 2008 Sep.
Article
em En
| MEDLINE
| ID: mdl-18986886
ABSTRACT
In this study, we report results on a piezoelectric- material-based mechanical energy-harvesting device that was fabricated by combining laser machining with microelectronics packaging technology. It was found that the laser-machining process did not have significant effect on the electrical properties of piezoelectric material. The fabricated device was tested in the low-frequency regime of 50 to 1000 Hz at constant force of 8 g (where g = 9.8 m/s(2)). The device was found to generate continuous power of 1.13 microW at 870 Hz across a 288.5 kOmega load with a power density of 301.3 microW/cm(3).
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Base de dados:
MEDLINE
Assunto principal:
Fontes de Energia Elétrica
/
Acústica
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Transferência de Energia
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Desenho de Equipamento
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Lasers
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article