New linear vibration energy harvesters based on bimorph PVDF hybrid fluid diaphragm

Abstract : A low resonance frequency piezoelectric energy harvesting using a hybrid fluid diaphragm (HFD) is presented. This paper describes the design, fabrication and characterization of such a device for harvesting energy from vibrations. The HFD consists in an incompressible fluid confined between two thin piezoelectric membranes. The output voltage and power of the PVDF HFD are studied based on experimental and simulation results. This device resonates at about 100 Hz for low acceleration (10 m/s²). The simulations showed the power production of about 10 µW.
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Florian Huet, Fabien Formosa, A. Badel. New linear vibration energy harvesters based on bimorph PVDF hybrid fluid diaphragm. 5èmes Journées Nationales sur la Récupération et le Stockage d’Énergie pour l'Alimentation des Microsystèmes Autonomes (JNRSE’2015), IEF, Université Paris Sud - CNRS, May 2015, Orsay, France. ⟨hal-01611637⟩

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