Energy harvester based on Terfenol-D for low power devices

摘要: Rising requirements for a new constructions, force engineers to monitor them all day long. An attractive solution seems be applications of wireless sensors. However, there is barrier limiting their application, which the need supply with an electrical power over extended period time without using additional wiring or batteries. The potential this problem energy harvesting. This paper proposes harvesting device based on magnetostrictive material. In course experiments Terfenol-D rods as actuators and sensors it has been shown, that mechanical impact magnetic core rod, NdFeB permanent magnets coil set allowed obtain electric signal enough 100 Ohm load active state.