Engineering Commons^™

Harvesting Vibration Energy Using Nonlinear Oscillations Of An Electromagnetic Inductor, Christopher Lee, David Stamp, Nitin Kapania, José Oscar Mur-Miranda

José Oscar Mur-Miranda

Harvesting energy from ambient vibration is a promising method for providing a continuous source of power for wireless sensor nodes. However, traditional energy harvesters are often derived from resonant linear oscillators which are capable of providing sufficient output power only if the dominant frequency of input vibrations closely matches the device resonant frequency. The limited scope of such devices has sparked an interest in the use of nonlinear oscillators as mechanisms for broadband energy harvesting. In this study, we investigate the harvesting performance of an electromagnetic harvester sustaining oscillations through the phenomena of magnetic levitation. The nonlinear behavior of the …