In this paper, a continuum mathematical electro-mechanical model of ultrasonic Langevin
transducers has been developed by considering three factors: 3D vibrations, piezoelectric …

The piezoelectric transducers can be categorized into sonic, ultrasonic and megasonic
transducers based on the operating frequency. In each category, the design and function of …

Modeling and simulation of ultrasonic transducers systems is a challenging task due to the
presence of multi-physics effects such as electrical and mechanical effects and their …

This paper presents a complete PSpice model of an ultrasound single-element transducer,
including electrical and mechanical matching as well as the focusing lens. By using this …

Ultrasonic transducers for nondestructive inspection and for medical diagnosis are built as
self-contained units to be held by hand or in fixtures. They radiate into solids or into liquid …

Ultrasound transducers are used in a multitude of applications. A typical ultrasound
transducer assembly consists of a piezoelectric layer, one or more matching layers and a …

As an important tool to study piezoelectric ultrasonic transducers, the equivalent circuit
models are widely accepted and used in researches. In order to improve the simulating …

We have investigated the operating frequency of aluminium nitride thin film transducers up
to 350MHz. A sample consisting of 44 different sized devices (0.25-9mm2) was fabricated …

Thick (> 40 mum) ceramic films as piezoelectric and ultrasonic transducers (UTs) have been
successfully deposited on metallic and non-metallic substrates by a spray technique. In the …

A rapid identification of the piezoelectric material constants for a piezoelectric transducer is
proposed. The validity of a three-dimensional finite element routine was confirmed …