Abstract
In this paper, we propose a vibration energy harvester with high power generation efficiency in low-frequency wide band. The proposed device is a bimorph type composed of two piezoelectric layers and a middle elastic layer having a flexible mechanical metamaterial structure. By controlling the flexibility of the elastic layer by the microstructure, the strain of the piezoelectric layer and the power generation amount are increased. As a result, the proposed device achieves high power generation of 47.4 μW in the low-frequency band of 21.1 Hz. This power is 1.6 times larger than that of the conventional flat plate and satisfies the minimum electric power amount required as a sensor node for WANs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
