MATEC Web Conf.
Volume 171, 2018The First International Conference on Energy, Power, Petroleum and Petrochemical Engineering (E3PE 2017)
|Number of page(s)||5|
|Section||Chapter 2: Energy Management Systems|
|Published online||04 June 2018|
Analytical model for the energy harvesting of a spherical sensor from ambient vibrations
1 Department of Opto-Acousto-Electronics Institute of Electronics, Microelectronics and Nanotechnology UMR CNRS 8520 59313 Valenciennes Cedex 9, France
2 Laboratory of Physics and Modeling, EDST, Lebanese University 1300 - Tripoli, Lebanon
In this work an analytical model for the energy harvesting of an acoustic spherical sensor has been developed in the context to make it autonomous. Our spherical sensor is composed of two half-spheres of Plexiglas and a piezoelectric ring of PZ26 that can be used as exciter or sensor. For the analytical model, the piezoelectric ring was modeled using two primary modes of vibration: thickness and radial. For each mode, the ring is described by an equivalent electromechanical model which connects the mechanical part (forces and velocities) to the electrical part (voltage and current). The proposed paper theoretical model enables building a global electromechanical circuit in order to simulate the total harvested voltage response.
Key words: energy harvesting / piezoelectric ring / spherical sensor / vibration modes
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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