Work

Improved Diamagnetic Levitation Structure and Its Application in Vibration Energy Harvester

Year: 2025

Type: article

Abstract: In this paper, an array of permanent magnets is proposed as a floating magnet to enhance the levitation characteristics of the diamagnetic levitation structure.Experimental results show that the maximum steady levitation gap of the diamagnetic levitation structure can be increased by 80.21% with the new floating magnet, and the axial size of the diamagnetic levitation structure can be reduced by up to 39.73%.A prototype of a vibration energy harvester based on the diamagnetic levitation structure was constructed.The experimental results show that when the external excitation frequency is 4.8 Hz and the amplitude is 6 mm, the maximum effective voltage of the vibration energy harvester is 1663 mV.Compared with the original structure, the output performance of the vibration energy harvester is improved by 33.87%.This study shows that using this permanent magnet array as a floating magnet not only improves the levitation characteristics of the diamagnetic levitation structure, but also enhances the output performance of the vibration energy harvester.

Source: Sensors and Materials

DOI: 10.18494/sam5861

Authors: Shuang Du, Xia Li, Zhigang Jia, Zhiyong Pang, Kean C Aw, Yufeng Su

Institutions: Zhengzhou University, University of Auckland

Language: English

Topic: Innovative Energy Harvesting Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $748

Funders: National Natural Science Foundation of China, China Scholarship Council, Henan Provincial Science and Technology Research Project