Host: The Japan Society of Mechanical Engineers
Name : The 15th International Conference on Motion and Vibration(MoViC 2020)
Date : September 09, 2020 - September 11, 2020
The energy harvesting from mechanical vibration and impact is focused on as a self-sustainable power source for the purpose of gathering a driving energy of wireless sensors. Even if a recent low energy consumption system, a frequent access for the sensor or a continuous measurement requires a certain amount of energy for the wireless sensor node. In this study, a high efficiency energy harvester gathering from mechanical vibration and impact by means of electromagnetic induction is proposed. It is composed of both two ring-shape magnets with the same magnetic poles facing each other and a high saturation magnetization FeCo core. A 30 mm diameter and 20 mm height harvester fixed on a plate-spring achieves a 3 V – 1.2 mW generation extracted from 0.15 G – 49.5 Hz ambient vibration.
