| Autor: |
Xiao-Bin Cui, Cheng-Ping Huang, Jun-Hui Hu |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2015, Vol. 117 Issue 10, p104502-1-104502-4, 4p, 2 Diagrams, 3 Graphs |
| Abstrakt: |
A sound energy harvester with an acoustic grating and a piezoelectric plate has been demonstrated. The acoustic grating consists of a metal slit grating and a thin flat metal screen. The metal slit grating can squeeze an incident acoustic wave into the air gap between the slit grating and metal screen, thus giving rise to high sound pressure and causing the metal screen to vibrate. Using the direct piezoelectric effect, the "squeezed" acoustic energy is harvested efficiently by a piezoelectric component that is mounted on the back of the metal screen. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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