Smart Sand—a wide bandwidth vibration energy harvesting platform
- 9 March 2009
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 94 (10), 103505
- https://doi.org/10.1063/1.3097207
Abstract
We propose a concept for true wide bandwidth vibration energy harvesting. Our approach exploits nonlinear stretching of fixed-fixed beams in an off-resonance mode, effectively expanding the operational frequency range well beyond the narrow bandwidth of linear resonators. Our initial prototype demonstrates operation between 160–400 Hz, without the need for frequency tuning. A simple dynamic model shows good agreement with measurements. Optimized device geometry will allow for even lower frequency operation (starting at 60 Hz) at strain levels above 1e-3 (ideal for piezoelectric transduction).Keywords
This publication has 12 references indexed in Scilit:
- Multimodal system for harvesting magnetic and mechanical energyApplied Physics Letters, 2008
- Design, fabrication and test of integrated micro-scale vibration-based electromagnetic generatorSensors and Actuators A: Physical, 2008
- A MEMS-based piezoelectric power generator array for vibration energy harvestingMicroelectronics Journal, 2008
- On Mechanical Modeling of Cantilevered Piezoelectric Vibration Energy HarvestersJournal of Intelligent Material Systems and Structures, 2008
- Piezoelectric multifrequency energy converter for power harvesting in autonomous microsystemsSensors and Actuators A: Physical, 2008
- A review of power harvesting using piezoelectric materials (2003–2006)Smart Materials and Structures, 2007
- Energy harvesting MEMS device based on thin film piezoelectric cantileversJournal of Electroceramics, 2006
- Fabrication and performance of a flat piezoelectric cantilever obtained using a sol–gel derived PZT thick film deposited on a SOI waferSmart Materials and Structures, 2005
- A piezoelectric vibration based generator for wireless electronicsSmart Materials and Structures, 2004
- A study of low level vibrations as a power source for wireless sensor nodesComputer Communications, 2002