A new type of radially sandwiched piezoelectric short cylindrical transducer is developed
and its radial vibration is studied. The transducer is composed of a solid metal disk, a …

The design and simulation of power transducers are difficult since piezoelectric, dielectric
and elastic properties of ferroelectric materials differ from linear behavior when driven at …

This paper deals with 3-D modeling of piezoelectric materials. The model is based on an
exact description of the potential and electric field inside a material. Moreover, coherent …

Near-field acoustic levitation (NFAL) has been used in noncontact handling and
transportation of small objects to avoid contamination. We have performed a theoretical …

Ultrasonic motors have been exploited mainly in low power and low duty cycle applications.
In aerospace and automotive applications, there is also the need for motors able to provide …

In this work, numerical simulations and experimental measurements carried out on a high-
power ultrasonic motor are presented. The proposed motor is composed of an annular …

Background Common piezoelectric transducers have large contact areas to maximize
sensitivity but are hard to position on small features. Yet, with the advance of additive …

The cylindrical piezoelectric transducer has the advantages of large radiation area, high
electromechanical coupled coefficient, and omni-direction radiation along the radius. In this …

Tonpilz-type transducers are the most commonly used projectors in underwater acoustic
applications. However, no complete design approach is available in the literature for such …

This paper concentrates on ultrasonic transducers, which are driven by piezoelectric
ceramic rings that are arranged in a stack. A novel drive option, where the stack contains a …