[18p-Z02-1~8] New development of power generation material research for IoT promoting DX in the new normal era

[18p-Z02-6] Resonance Frequency Tuning Method using Magnetization of Vibration Energy Harvesters

〇Masahiko Ito¹ (1.CRIEPI)

Keywords:vibration energy harvester, resonant frequency, Young's modules

As a method for adjusting the resonant frequency of a vibration energy harvester, we developed a simple method using the magnetization of the material, differ from conventional techniques. By adjusting the distance of the magnet in centimeter units, the strength of the magnetic field applied to the vibration energy harvester can be adjusted, and by changing the residual magnetization of the magnetostrictive material, the resonance frequency can be fine-tuned in units of 0.1 Hz.