High Damping Electrostatic System For Vibration Energy Scavenging

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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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Journal: TechConnect Briefs
Volume: 3, Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: May 8, 2005
Pages: 375 - 378
Industry sector: Sensors, MEMS, Electronics
Topicss: MEMS & NEMS Devices, Modeling & Applications, Sensors - Chemical, Physical & Bio
ISBN: 0-9767985-2-2