Energy Harvesting from Ambient Vibrations by Electromagnetic Transduction mechanism

摘要

This report presents the detailed study of utilization of ambient vibration energy present in a system by converting it into usable electrical energy. With the huge decrease in electrical energy consumption in portable electronic devices the concept of harvesting electrical energy from the renewable sources in the surroundings of the system arouses its great importance. These low power micro electromechanical systems that can scavenge electrical energy from their operating environment are very long lasting, less economical, need no maintenance, and most importantly can be operated in inaccessible sites. There are mainly three transduction mechanisms employed to extract electrical energy from the vibration energy present in the surrounding of the system namely:-ud Electromagneticud Piezoelectricud ElectrostaticudThis paper is a study of electromagnetic transduction mechanism to harvest useful electricaludenergy from the ambient vibrations.