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A Novel Characterization Method for Accurate Lumped Parameter Modeling of Electret Electrostatic Vibration Energy Harvesters

Abstract : This letter presents a new method for the characterization of electret transducers, which are typically used in electrostatic vibration energy harvesters (electret e-VEHs). This is the first method allowing to accurately measure the value of the equivalent voltage source representing the electret in lumped parameter models of a wide range of electret e-VEHs. An accurate value for this parameter is critical for design, analysis and optimization, given the increasing complexity of e-VEHs electrical interfaces. Until now, there was no universal method allowing the measurement of this parameter, because of practical difficulties with some geometries, and because of charging non-uniformities. In this letter, the new method is presented, with insights on how to maximize the measurement accuracy. It is then applied to a state-of-the art MEMS electret e-VEH.
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https://hal.archives-ouvertes.fr/hal-01490740
Contributor : Armine Karami Connect in order to contact the contributor
Submitted on : Wednesday, March 15, 2017 - 5:59:39 PM
Last modification on : Monday, February 21, 2022 - 3:38:11 PM
Long-term archiving on: : Friday, June 16, 2017 - 3:09:09 PM

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Armine Karami, Dimitri Galayko, Philippe Basset. A Novel Characterization Method for Accurate Lumped Parameter Modeling of Electret Electrostatic Vibration Energy Harvesters. IEEE Electron Device Letters, Institute of Electrical and Electronics Engineers, 2017, 38 (5), pp.665-668. ⟨10.1109/LED.2017.2682232⟩. ⟨hal-01490740⟩

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