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Analysis of the influence of pre-magnetization conditions on the working ability of Fe–Ga alloy vibration harvester by Linru Wei; Huifang Liu; Qiang Zhao; Zhanqi Liu; Yunlong Chang is a Materials Science article available to read on EtoBox.

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With the rapid development and extensive use of production and life information and intelligent, electronic technology, and mechatronics products, vibration energy harvesters are developed considerably. The pre-magnetized magnetic field affects the magnetic domain distribution and the magnetostrictive reaction of magnetostrictive materials. It further affects the ability of vibration energy harvesting. In this paper, the pre-magnetization conditions of the Fe-Ga alloy base magnetostrictive vibration harvester are systematically studied to improve its vibration harvesting ability. The pre-magnetization conditions are systematically analyzed from finite element analysis and experimental views. Based on the electromagnetic coupling characteristics of the vibration energy harvesting device, the influence of the pre-magnetized magnetic field on the energy harvesting device under various magnetic field arrangements is analyzed using finite element numerical simulations. We conducted experiments using five sizes of permanent magnets with different numbers and NS pole orientations. The effect of the pre-magnetized magnetic field on the power generation characteristics of the cantilever vib

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Author

Linru Wei; Huifang Liu; Qiang Zhao; Zhanqi Liu; Yunlong Chang

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)