Electromagnetic vibration power generator

Abstract

This paper shows an alternative for supplying wireless sensors with energy: Electrical power is generated from an ambient mechanical vibration by use of a vibration power generator. As the generator is excited by ambient mechanical vibration, its construction produces a relative movement of a magnetic circuit. This movement induces a current into an electrical coil due to Faraday,s law. For aeronautical applications like e.g. helicopters, the generated power of around 5mW provides enough energy to supply a wireless sensor. ©2007 IEEE.