High Damping Electrostatic System For Vibration Energy Scavenging
G. Despesse, J.J. Chaillout, I. Dekkaki, T. Jager, J.M. Léger, A. Vassilev, S. Basrour and B. Charlot
global MEMS simulation, vibration, energy scavenging, electrostatique conversion
We report here global simulations and designs of mechanical structures able to recover power over a large spectrum below 100 Hz. Contrary to existing structures tuned on a particular frequency, we have investigated conversion structures with low quality factors allowing power scavenging with a high electrical damping. MATLAB and Mathematica analytical models have been performed to determine the mechanical and electrical parameters that maximize the scavenged power for a wide number of applications. An electrostatic transduction is used to convert vibrations of the moving mass into electrical power.
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Nanotech 2005 Conference Program Abstract