To clarify a guideline for designing a vibration energy harvesting device using magnetostrictive materials, the characteristics of the vibration energy harvesting device with an Fe–Ga alloy single crystal were investigated. Magnetic flux density changes and strain amplitude generated in the device were measured using coils and strain gauges, respectively. The results were compared between devices with alloy crystals of (110)[001] and (110)[ ##IMG## [http://ej.iop.org/images/1347-4065/59/9/098003/jjapabb0c4ieqn1.gif] {$\overline{1}$} 11] orientations. The strains in the devices during vibration showed that uniform strains are important for obtaining high magnetic flux changes. A guideline for designing a device with high performance is proposed based on these results.

中文翻译：

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使用磁致伸缩铁镓合金设计振动能量收集装置

为了阐明使用磁致伸缩材料设计振动能量收集装置的指南，研究了使用Fe-Ga合金单晶的振动能量收集装置的特性。分别使用线圈和应变仪测量设备中产生的磁通密度变化和应变幅度。将结果与具有（110）[001]和（110）[[http://ej.iop.org/images/1347-4065/59/9/098003/jjapabb0c4ieqn1 .gif] {$ \ overline {1} $} 11]方向。振动期间设备中的应变表明，均匀应变对于获得高磁通量变化很重要。基于这些结果，提出了设计高性能器件的指南。