Production of vibration energy harvester with impact-sliding structure using magnetostrictive Fe-Co-V alloy rod
Production of vibration energy harvester with impact-sliding structure using magnetostrictive Fe-Co-V alloy rod
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DOI：
10.1016/j.jmmm.2020.167260
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发表时间：
2020-11-15
影响因子：
2.7
通讯作者：
Sekiguchi, Tetsushi
中科院分区：
文献类型：
--
作者：
Yamaura, Shin-ichi;Nakajima, Takashi;Sekiguchi, Tetsushi
在这项工作中，生产了一种采用磁致伸缩Permendur（Fe-Co-V）棒的冲击滑动结构的轴向型振动能量收集器，并测量了其发电性能。结果发现，利用FFT方法从实验获得的电压波形中分析出的所有峰值频率与计算出的杆轴向振动的固有频率一致。因此，所提出的采集器的发电可能是由磁致伸缩杆固有的轴向振动引起的。此外，在这项工作中获得的最大输出能量为1592 pJ，这是由具有3000线圈匝和两个磁铁的收集器在3 kQ的负载电阻下产生的。结果发现，在杆轴向振动的固有频率下，当负载电阻接近线圈阻抗时，产生最大输出能量。
In this work, an axial-type vibration energy harvester with an impact-sliding structure that uses a magnetostrictive Permendur (Fe-Co-V) rod was produced and its power generation properties were measured. It was found that all the peak frequencies analyzed using the FFT method from the experimentally obtained voltage waveforms were consistent with the calculated inherent frequencies of the axial vibration of the rod. Therefore, the power generation by the proposed harvester likely resulted from the inherent axial vibration of the magnetostrictive rod. Furthermore, the maximum output energy obtained in this work was 1592 pJ, which was generated by a harvester with 3000 coil turns and two magnets under a load resistance of 3 kQ. It was found that the maximum output energy was generated when the load resistance was close to the coil impedance at the inherent frequency of the axial vibration of the rod.