The key factor to the miniaturization of piezoelectric devices is power density, which is
limited by the heat generation or loss mechanisms. There are three loss components in …

Piezoelectric ultrasonic-assisted precision machining (PUAPM) technology is considered to
be an efficient and environmentally friendly machining strategy by virtue of cutting force …

This work presents a novel constant frequency ultrasonicamplitude control (CFUAC) method
based on fuzzy proportional-integral-derivative (FPID) and amplitude direct feedback. The …

Piezoceramics are widely‐used in high‐power applications, whereby the material is driven
in the vicinity of the resonance frequency with high electric fields. Evaluating material's …

The attenuation and fluctuation of ultrasonic vibration amplitude caused by the change of
cutting load have become crucial factors limiting the precision improvement of the 2D …

This paper is focused on evaluation methods for materials at high amplitudes of ultrasonic
vibrations. First, basic concepts on piezoelectric ultrasonic transducers utilized in power …

Minimally invasive surgery offers opportunities for reduced morbidities, faster postoperative
recovery, and reduced costs, and is a major focus of surgical device innovation. For …

Power ultrasonic applications such as cutting, welding, and sonochemistry often use
Langevin transducers to generate power ultrasound. Traditionally, it has been proposed that …

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 …

Ultrasonic surgical devices are increasingly used in oral, craniofacial and maxillofacial
surgery to cut mineralized tissue, offering the surgeon high accuracy with minimal risk to …