DefinePK

Abstract

The relatively short lifetime of batteries cannot fulfill the requirements for some wireless sensors. This is particularly the case where replacing batteries is difficult, dangerous and expensive. Energy harvesting systems have been proposed as a solution to such problem, In this paper, we proposed a model and presented the simulation of a MEMS-based arrayed energy harvester under ambient vibration excitation using Coventorware approach. This arrayed cantilever-based MEMS piezoelectric energy harvester operated under ambient excitation frequency band of 67 to 70 Hz, within a base acceleration between 0.2 to 1.3g produced an output power and voltage of 6.8 µw and 0.4 volt respectively.