Wireless Sensor Using Electromagnetic Vibration Energy Harvester

Abstract

　A wireless sensor which is powered by a vibration energy harvester (VEH) with magnetic induction is proposed. The wireless sensor is composed of the VEH device, a voltage multiplier, boost converter and wireless communication module. The VEH device has double magnetic circuits which form almost magnetically closed paths. It is shown that the wireless sensor can work for input acceleration 0.1 G at around 30 Hz.