| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2022: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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| Outline of Final Research Achievements |
Vibration energy harvesting using the inverse magnetostrictive effect of Fe-Ga alloys has attracted significant attention, because it can generate electrical energy from ambient vibration. The Fe-Si alloys show smaller magnetostriction when compared with Fe-Ga alloys. However, the saturation magnetization and magnetic susceptibility of the former are larger than those of the latter. In this study, the influence of crystal orientation of an Fe-Si alloy on vibration power generation properties was investigated using a U-shaped unimorph device. In addition, we also developed an evaluation system of the inverse magnetostrictive effect. The change in magnetic flux density due to the inverse magnetostrictive effect was directly evaluated by this system.
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