Results 21 to 30 of about 74,223 (298)
Design and Experimental Research on a Deep-Sea Resonant Linear Ultrasonic Motor
A deep-sea linear ultrasonic motor, which takes in-plane expansion mode as the working mode, is proposed in this paper. Its main structure is rectangular metal plate with four piezoelectric ceramics.
Shaopeng He +3 more
doaj +1 more source
A Novel Rotary Ultrasonic Motor Using the Longitudinal Vibration Mode
A novel rotary ultrasonic motor using only the longitudinal vibration mode was proposed in this paper, which avoided the frequency degeneration of multi-modal coupling ultrasonic motors.
Dongmei Xu +3 more
doaj +1 more source
To compensate for the influence of temperature on the efficiency of an ultrasonic motor (USM), this paper proposed a maximum efficiency point tracking control method for temperature drift by analysing the relationships between the maximum efficiency ...
Lei Zhao +6 more
doaj +1 more source
Efficiency Model for Traveling Wave-Type Ultrasonic Motors Based on Contact Variables and Preload
The contact interface variables are difficult to measure for an ultrasonic motor. When the ultrasonic motor works under different preloads, the error between the traditional efficiency model and the real output is quite large. In order to solve these two
Haoyu Sun +3 more
doaj +1 more source
Ultrasonic Motors Structural Design and Tribological Performance -A Review
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
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Steady-State Fuzzy Modeling of Ultrasonic Motor System
Because of the complicated energy conversion process, ultrasonic motor has remarkable nonlinearity. Therefore, it is difficult to achieve accurate speed control of ultrasonic ...
Shi Jingzhuo, Lv Lin
doaj +1 more source
Waterproof ultrasonic motor [PDF]
The authors have been making a multi degree of freedom piezoelectric actuator that has Translational and Rotational motions in one joint (TR motor). Because the motor has the advantages such as simple structure and excellent controllability, it has high potentials for wide use in non-industrial applications.
S. Toyama, U. Nishizawa
openaire +1 more source
Development of two-axis non-magnetic turntable based on ultrasonic motor
Test as well as calibration precision of a coordinator is determined by the precision of the test turntable, and the improvement of the test turntable is the most effective way to improve the calibration accuracy of the coordinator.
Bo Zhang, Zhou Wang, Tao Wang
doaj +1 more source
Most of the multidegree-of-freedom ultrasonic motors (MDOF-USMs) use a spherical rotor, and the design of the stator is restricted due to the use of the resonance mode.
Ai Mizuno +3 more
doaj +1 more source
Forward-Looking Echoic Flow for Guidance of an Unmanned Aerial System [PDF]
Echoic flow is a formula derived from natural phenomena that has the potential to control vehicles with great efficiency using range information. Initially studied in bats, echoic flow allows animals to use sonar as a navigation tool.
Steven, James
core

