Design of Piezoceramic Length for Cantilever-Type Piezoelectric Generators

The power harvesting from ambient vibrations can be stored to support wireless sensors which are applied for temperature and humidity measurement and machinery acceleration monitoring. Such vibration-based generators can automatically transform mechanical energy into electrical energy to supply the maintenance-free, wireless electronics. The piezoelectric effect is an effective method of electromechanical transduction. Cantilevertype piezoelectric generators with piezoelectric patches have recently received increasing attention over the past decades [1].