With the developing of ultrasound technology and expending of it's application scope, new
requirements for the structure and the energy radiation of the transducer are presented. A …

This paper considers the influence of the different thickness of the piezoelectric discs used in
assembly of an ultrasonic sandwich transducer. The transducer consists of two piezoelectric …

Ultrasonic transducers are the most important part of an ultrasonic testing system which
significantly affect the precision and accuracy of the measurements. Piezoelectric …

The optimization of piezoelectric ultrasonic transducers has tradisionally been done through
trial and error, somewhat guided by one-dimentional simulations. This can often be a very …

In this paper, contributions of the mechanical and electric power losses have been studied in
a typical piezoelectric ultrasonic transducer under free conditions. The losses in a Langevin …

The sandwich ultrasonic transducer with two sets of piezoelectric ceramic elements is
analyzed. It is composed of a back metal mass, a front metal mass and two sets of …

The technology involved in high performance ultrasound imaging probes needs a reliable
model to help in new projects development and performance simulations. To achieve a …

In recent years, MEMS (micro-electrical mechanical systems) microphones have been used
as low-cost alternatives to more costly phased arrays condenser microphones. More study of …

In this paper, a three-dimension (3-D) mechanical element with an extra electrical degree of
freedom is employed to simulate the dynamic vibration modes of the linear piezoelectric …

Ultrasound has become an effective and practical tool for obtaining medical information from
within the human body without exposing the patient to X-rays. The emphasis of this paper is …