Also, vibration is an important issue for the turbine structure but can be an useful in renewable energy for the active nodes [11] [12] [13]. There are three basic approaches for converting vibration into electricity: piezoelectric, electromagnetic, and electrostatic. In piezoelectric transducers, vibrations distort the crystalline configuration of the sensor, thereby generating electricity. Electrostatic transducers respond to changes caused by vibration in the space gap between two electrodes of a polarized capacitor. In electromagnetic transducers, electricity is based on the relative motion of a coil and a magnet. Most such energy harvesting devices developed to date are resonance frequency-based, generally involving the motion of a tuned cantilever arm to maximize the vibration effect. Vibration energy harvesters typically reach power levels ranging from a few microwatts of several milli watts.