Flextensional Piezoelectric Actuator consists of a flexible structure actuated by piezoelectric ceramics. These actuators are applied to microelectromechanical systems (MEMS), nanotechnology equipment, microsurgery equipment, etc. However, due to the fact these actuators essentially consist of a compliant mechanism their design is complex. The compliant structure behaves as a mechanical transfo...

Underwater acoustic transducers often include a stack of thickness polarized piezoelectric material pieces of alternating polarity interspersed with electrodes, bonded together and electrically connected in parallel. The stack is normally much shorter than a quarter wavelength at the fundamental resonance frequency, so that the mechanical behavior of the transducer is not affected by the segmen...

The rapid development of technology causes humans to provide a large amount energy, especially electrical energy. One the new renewable energy sources that is still under piezoelectric-based harvester. Piezoelectric itself material has an electric polarizing effect occurs in certain materials when given mechanical stress. potential difference measured across piezoelectric proportional applied p...

Tonpilz acoustic transducers for use underwater often include a stack of piezoelectric material pieces polarized along the length of the stack and having alternating polarity. The pieces are interspersed with electrodes, bonded together, and electrically connected in parallel. The stack is normally much shorter than a quarter wavelength at the fundamental resonance frequency so that the mechani...

In this paper, for the application to multi-layer piezoelectric devices capable of being used in speakers, Pb(Ni1/3Nb2/3)O3-Pb(Zr,Ti)O3-BiFeO3 ceramics substituted with Pb(Mg1/2W1/2)O3 were manufactured according MnO2 addition, and their physical properties studied. At non-doped added specimen, maximum values shown, respectively: εr 2182, d33 513 pC/N, kp 0.634. When taking into consideration l...

The aim of this work has been to evaluate the use of Piezosurgery in the different otological surgical techniques. Piezoelectric bone surgery, also known simply as Piezosurgery, is a new technique for osteotomy and osteoplasty. The equipment consists of two piezoelectric handpieces and two inserts that are connected to a main unit. This unit supplies power and has holders for the handpiece and ...