Results 1 to 10 of about 2,577 (260)

A Comprehensive Review of Piezoelectric Ultrasonic Motors: Classifications, Characterization, Fabrication, Applications, and Future Challenges [PDF]

open access: yesMicromachines
Piezoelectric ultrasonic motors (USMs) are actuators that use ultrasonic frequency piezoelectric vibration-generated waves to transform electrical energy into rotary or translating motion. USMs receive more attention because they offer distinct qualities
Sidra Naz, Tian-Bing Xu
doaj   +4 more sources

Design of a Magnetically Anchored Laparoscope Using Miniature Ultrasonic Motors [PDF]

open access: yesMicromachines, 2022
Images taken by an endoscope in single-port-access surgery are the most important information for directing surgeons to operate, so acquiring images taken at better position and a more desired perspective has profound significance for improving the ...
Jingwu Li   +3 more
doaj   +2 more sources

Dahl Friction Model for Driving Characteristics of V-Shape Linear Ultrasonic Motors [PDF]

open access: yesMicromachines, 2022
The contact process of stator and slider described by the Coulomb friction model is basically in a pure sliding friction state, and a mechanical model based on the Dahl friction theory was proposed to describe the contact process between stator and ...
Bo Zhang   +5 more
doaj   +2 more sources

Pre-Pressure Optimization for Ultrasonic Motors Based on Multi-Sensor Fusion [PDF]

open access: yesSensors, 2020
This paper investigates the pre-pressure’s influence on the key performance of a traveling wave ultrasonic motor (TRUM) using simulations and experimental tests. An analytical model accompanied with power dissipation is built, and an electric cylinder is
Ning Chen, Jieji Zheng, Dapeng Fan
doaj   +2 more sources

Investigation of Displacement and Force Characteristics of Piezoelectric Multilayer Actuator for Active Preload Control System in Ultrasonic Motors [PDF]

open access: yesMicromachines
The paper represents both numerical simulations and experimental investigations of a piezoelectric active preload system that is foreseen to be applied to the active preload control system of rotors of ultrasonic piezoelectric motors.
Harsimran Singh Saini   +2 more
doaj   +2 more sources

A Study on the Evaluation of Ultrasonic Propagation Properties and Nonlinearity According to Temperature Changes of Aluminium Alloys for Each Aluminium Alloy by Temperature [PDF]

open access: yesSensors
Aluminium alloys are widely used across various industrial sectors due to their suitability for enhancing structural safety and reducing weight, thereby improving operational efficiency.
Junpil Park, Jaesun Lee
doaj   +2 more sources

Development of a Plate Linear Ultrasonic Motor Using the Power Flow Method [PDF]

open access: yesMicromachines
Linear ultrasonic motors can output large thrust stably in a narrow space. In this paper, a plate linear ultrasonic motor is studied. Firstly, the configuration and operating principle of the Π-type linear ultrasonic motor is illustrated.
Yue Jian   +4 more
doaj   +2 more sources

Partial Discharge Detection from Large Motor Stator Slots Using EFPI Sensors [PDF]

open access: yesSensors
This study addresses the challenges of electromagnetic interference and unstable signal transmission encountered by traditional sensors in detecting partial discharge (PD) within stator slots of large motors. A novel Extrinsic Fabry–Perot Interferometer (
Jinlong Wang   +7 more
doaj   +2 more sources

Ultrasonic Motors Structural Design and Tribological Performance -A Review

open access: yesTribology Online, 2021
The advent of smart materials and modern control theory has seen the rapid development of ultrasonic motors over the last decades. They have become promising precision driving components due to their unique piezoelectric transduction and friction drive ...
Julius Caesar Puoza   +1 more
doaj   +1 more source

Development of a 3-DOF Cylindrical Ultrasonic Motor Based on Non-Standard Modes

open access: yesApplied Sciences, 2023
Cylindrical multi-degree-of-freedom (multi-DOF) ultrasonic motors have the potential to significantly reduce motor size compared to other ultrasonic motors. They find applications in various systems, including micro-robot joints and space probes.
Jingwen Leng   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy