Piezoelectric Materials for Nonlinear Energy Harvesting Generators

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Neiss, S.^1 ; Goldschmidtboeing, F.^1 ; Kroener, M.^1 ; Woias, P.^1

Laboratory for Design of Microsystems, IMTEK, University of Freiburg, Georges-Koehler-Allee 102, 79110 Freiburg, Germany^1

关键词: Mechanical coupling;    Mechanical qualities;    Piezo-ceramics;    Piezoceramic materials;    Piezoelectric energy harvesting;    Power out put;    Two parameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012035/pdf
DOI  :  10.1088/1742-6596/476/1/012035

来源: IOP

【 摘 要 】

Nonlinear piezoelectric energy harvesting generators can provide a large bandwidth combined with a good resonant power output. In an experimental study, the influence of the piezoceramic material on these two parameters is investigated. The results prove hard piezoceramics to be better suited as converting element compared to soft piezoceramics. Their improved mechanical quality compensates for their low piezo-mechanical coupling leading to both, a larger bandwidth and a higher power output of the generator.