Magnetically coupled flextensional transducer for impulsive energy harvesting

摘要: Impulsive energy is widespread in civil and industrial environment. Energy harvesting from ambient environment considered as a promising way to replace the conventional batteries for powering wireless autonomous electronic devices. The combination of nonlinear bistable flextensional mechanisms impulsive has advantages high equivalent piezoelectric constant, reliability sensitivity. design consists cantilever beam with tip magnet two magnetically coupled transducers (MCFTs). dynamical model provided describe electromechanical transition. Experiments simulations are carried out evaluate performances harvesters under different inputs by fingertip. Results verify that can be used characterize harvester excitation. work effectively weak reliable durable strong inputs.