In this paper a comprehensive review of recent studies on the ultrasonic piezoelectric motors
is presented. The authors focus on research articles published in the last five years mostly …

Robust and precise motion tracking for micro-electro-mechanical systems in the presence of
inherent nonlinearity and external disturbance is of great importance in many applications …

To accomplish fast movement and high positioning capability, a miniature self-moving
piezoelectric actuator (MSPA) is developed with two groups of polyphenylene sulfide (PPS) …

The versatile and effective piezoelectric ultrasonic motor (PUM) has been widely used in
many significant industrial and scientific applications, including precision positioning …

This paper presents a new scheme of adaptive sliding mode control (ASMC) for a
piezoelectric ultrasonic motor driven X–Y stage to meet the demand of precision motion …

Piezoelectric Ultrasonic motors (USM) are based on the principle of converse piezoelectric
effect ie, vibrations occur when an electrical field is applied to piezoelectric materials. USMs …

This paper proposes a multi-degree-of-freedom (multi-DOF) ultrasonic motor with four
stators clamping a spherical rotor. The stator surface teeth are inclined at a certain angle …

PI (proportional integral) controller is widely utilized in ultrasonic motor control systems.
However, PI controllers which use fixed parameters is often difficult to ensure that the control …

Due to the time-dependent correlations, the measurement and characterization of electronic
and mechanical parameters are critical for linear piezoelectric ultrasonic motors (USMs) …

Piezoelectric atomization has been applied in the field of respiratory medicine delivery and
chemistry. However, the wider application of this technique is limited by the viscosity of the …