Design Flexural Piezoelectric Acoustic Transducers Array based d33 Mode Polarization

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...

Approximate Error Analysis of Acoustic Passive Directing with Cross Array Based on Piezoelectric Transducers

The four-element cross array is consisted of four piezoelectric transducers arranged in the form of cross. Passive directing with cross array is a very useful method for acoustic target detecting. This paper presented the algorithm of acoustic passive directing with cross array based on time delay estimation, and accurate formula and approximate formula for calculating the target’s direction we...

Piezoelectric Materials Used in Underwater Acoustic Transducers

Design and the radiation patterns of rectangular symmetric bimorph piezoelectric transducers in cosinusoidal flexural vibration

In this article, the design of rectangular symmetric bimorph piezoelectric ceramic transducers with loose and fixed edges and with parallel electric excitation is studied. Rectangular piezoelectric ceramic transducers in cosinusoidal flexural vibration with straight and parallel nodal lines of vibration are studied. The radiation of the transducer in a plane perpendicular to the surface of the ...

The calculation of near and far fields for acoustic antennas consisting of piezoelectric rectangular bimorph transducers in flexural vibration

In this article the calculation, along with practical examples of near and far fields of acoustic antennas are presented. Knowing the near and far fields is important because the radiation patterns and physical measurements of the antennas depend on them. These antennas designed for measurements in air consist of transducers in flexural vibration, which give the best possibility to match acoust...