International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 68 - Number 19 |
Year of Publication: 2013 |
Authors: Ritu Tiwari, Mayank Gupta, Om Prakash Tiwary |
10.5120/11688-7384 |
Ritu Tiwari, Mayank Gupta, Om Prakash Tiwary . Study of different Energy Scavenging Techniques through Vibration and its Micro Power Applications. International Journal of Computer Applications. 68, 19 ( April 2013), 17-23. DOI=10.5120/11688-7384
Sensor's networks and information technology known at present an intensive development due to their numerous applications in car industry, aeronautics, telephony, computing and so on. To embark these systems in a large scale it is necessary for them, to be completely autonomous from an energy point of view. Vibration Energy Harvesting is a key point for powering sensor nodes, towards the development of autonomous sensor systems. To generate electrical energy three transduction mechanisms piezoelectric, electrostatic and electromagnetic are used. A comprehensive review of existing piezoelectric generators is presented including resonant, impact coupled and human based devices for micro power utilization. Electromagnetic generators employ electromagnetic induction arising from the relative motion between a conductor and a magnetic flux gradient. Electromagnetic generators presented in the literature are reviewed including wafer-scale integrated versions and large scale discrete devices. Electrostatic generators utilize the relative movement between electrically isolated charged capacitor plates to generate the energy. The work done against the electrostatic force between the plates gives the harvested energy. Electrostatic based generators have been reviewed under the classifications of electrets based and electrets free electrostatic devices. This paper reviewed the existing all three types of transduction mechanism for energy harvesting and their application