Vibration energy regeneration system using piezoelectric sensor for wideband application

• Main Authors: Basari, Amat Amir, Azhar, Nur Hazlin, Mohamad, Khairul Anuar
• Format: Article
• Language: English
• Published: Penerbit UTHM 2022
• Online Access: http://eprints.utem.edu.my/id/eprint/26439/2/PUBLISHED%20VERSION.PDF; http://eprints.utem.edu.my/id/eprint/26439/; https://publisher.uthm.edu.my/ojs/index.php/emait/article/view/9704/5151; https://doi.org/10.30880/emait.2022.03.01.005
• Institution: Universiti Teknikal Malaysia Melaka

This paper presents a method for widening bandwidth by using non-uniform mass which use the concept of center of gravity. Piezoelectric acts as a tool to convert vibration energy to electrical energy. The displacement from the liquid movement plays a role to enhance the bandwidth as the beam bends. The bandwidth is widened 2 times higher compared without tip mass and 1.6 time increased than that of solid tip-mass. High viscosity and density will give a greater effect on the bandwidth at low volume compared to low properties of fluid. Rectangular container can resist the tension of liquid due to high viscosity and volume. The fluid-filled mass technique widened the bandwidth without reducing the harvested power.