Integrated piezoelectric plate acoustic waves transducers

Piezoelectric Materials Used in Underwater Acoustic Transducers

Experimental Study of Acoustic Streaming Phenomenon Generated by Piezoelectric Transducers

The presented work is a study of acoustic microagitation, based on piezoelectric transducers, for being applied in microfluidic devices to promote mixing. The study comprises an experimental verification, by microscopy, of this phenomenon. It can be observed that the excitation of the PZT and β-PVDF piezoelectric transducers generates the fluid movement and creates patterns of recirculation, ac...

Design Flexural Piezoelectric Acoustic Transducers Array Based d33 Mode Polarization

Received Jan 16, 2018 Revised Mar 18, 2018 Accepted Mar 31, 2018 Piezoelectric Acoustic Transducer (PAT) is a transducers used in many application such as medical diagnostic, medical ultrasonic imaging and underwater acoustic applications. Latest research, PAT were investigated in marine application and underwater acoustic imaging. Conventional PAT is design based on sensing element, Piezoelect...

Propagation of Thickness-Twist Waves in an Infinite Piezoelectric Plate

Thickness-twist waves in piezoelectric plates are widely used as the operating modes for acoustic wave resonators, filters, sensors, and other devices (Mindlin, 1965; Mindlin, 1967; Pearman, 1968; Bleustein, 1966; Bleustein, 1969; Yang et al., 2008a; Yang & Guo, 2006). Acoustic waves in these devices are driven by an alternating voltage applied to the electrodes deposited on the plates. Therefo...

Ultrasonic beam models for the generation of surface waves and plate waves with angle beam transducers

A new transducer beam model is developed for the generation of Rayleigh surface wave and Lamb plate waves by an angle beam transducer, which is one of the configurations commonly used for the generation of these wave types. The beam model is a fully 3-D model that takes into account the fields generated by the transducer acting on the surface of a wedge. The model also accounts for the leaky wa...