Method for application specific electrodynamic harvester design

Mechanical vibrations can be converted to usable electrical energy by a suitable transducer. There are three basic physical principles for mechanical vibration energy harvesting: electrodynamic, electrostatic and piezoelectric. For lower vibration frequencies generated in applications like transportation, power engines or human motion the electrodynamic principle has advantages compared to the others. In addition to high energy density and adaptable power transmission it is easier to match the transducers characteristics to the power spectral density of the vibration source. Therefore, investigations on the available vibration energy and its frequency characteristics are the basis for the design of vibration transducers.