Conference paper · Journal article
A MEMS Energy Harvesting Device for Vibration with Low Acceleration
Department of Micro- and Nanotechnology, Technical University of Denmark1
Silicon Microtechnology, Department of Micro- and Nanotechnology, Technical University of Denmark2
MEMS-AppliedSensors, Department of Micro- and Nanotechnology, Technical University of Denmark3
Tongji University4
Surface Physics and Catalysis, Department of Physics, Technical University of Denmark5
We propose a polymer electret based energy harvesting device in order to extract energy from vibration sources with low acceleration. With MEMS technology, a silicon structure is fabricated which can resonate in 2D directions. Thanks to the excellent mechanical properties of the silicon material, the proof mass could be successfully driven by an external vibrations with acceleration as low as 0.014g (∼0.14 m/s2).
A root mean square (RMS) power output of 1.17μW under 0.014g RMS acceleration at 75Hz is measured when an optimal load of 20.3 MΩ is applied. The frequency response of the device is also studied and a high Q factor of 250 is achieved.
| Language: | English |
|---|---|
| Year: | 2012 |
| Pages: | 770-773 |
| Proceedings: | Eurosensors 2012 |
| ISSN: | 18777058 |
| Types: | Conference paper and Journal article |
| DOI: | 10.1016/j.proeng.2012.09.261 |
| ORCIDs: | Triches, Marco , Crovetto, Andrea , Lei, Anders and Hansen, Ole |
