Piezoelectric harvester scavenges energy from cavity of phononic crystal
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Titre | Piezoelectric harvester scavenges energy from cavity of phononic crystal |
Type de publication | Conference Paper |
Year of Publication | 2017 |
Auteurs | Hu H, Zheng Y, Jiang S, Hu Y, Laude V |
Conference Name | 2017 JOINT CONFERENCE OF THE EUROPEAN FREQUENCY AND TIME FORUM AND IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (EFTF/IFC) |
Publisher | IEEE |
Conference Location | 345 E 47TH ST, NEW YORK, NY 10017 USA |
ISBN Number | 978-1-5386-2916-1 |
Mots-clés | Cavity, phononic crystal, Power harvester |
Résumé | We propose a model of a piezoelectric power harvester that scavenges energy from the cavity of a phononic crystal (PnC). The band structure of the PnC with a cavity is calculated by super-cell technique. The energy is collected in the cavity when the frequency of the cavity defect mode appears inside the band gap. As a result, the harvester can transform mechanical energy into electric energy efficiently. |