International Journal of Emerging Technology and Advanced Engineering (IJETAE)
This paper presents the wideband vibration system of an electromagnetic vibration energy harvester which generates electric power for wireless sensor applications from the ever-changing vibrations. It is a system with two degree-of-freedom vibration that is composed of two sets of mass and spring respectively. One vibration set of the system has the housing mass and a spring and the other one has the magnetic mass and a spring, which is the core structure of the vibration system for the Electromagnetic Energy Harvester. This vibration system is also called the Dynamic Vibration Absorber.