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Article
Precision control system of two-DOF stage with linear ultrasonic motor
Using an appropriate control method, linear ultrasonic motors can be used in applications requiring high position accuracy. In this paper, a closed loop PI control system is designed to achieve high position a...
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Article
Simple new ultrasonic piezoelectric actuator for precision linear positioning
This paper presents a new linear piezoelectric actuator for linear translation. The positioning stage driven by the actuator has a very simple and compact structure consisting of a linear guide and the linear ...
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Article
Application of piezoelectric materials in a novel linear ultrasonic motor based on shear-induced vibration mode
A novel linear ultrasonic motor based on d 15 effect of piezoelectric materials was presented. The design idea aimed at the direct utilization of the shear-induced vibration modes of piezoelectric...
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Article
Novel linear piezoelectric motor for precision position stage
Conventional servomotor and step** motor face challenges in nanometer positioning stages due to the complex structure, motion transformation mechanism, and slow dynamic response, especially directly driven b...
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Article
Development and placement accuracy evaluation of an MR conditional robot for prostate intervention
Robot-assisted prostate intervention under magnetic resonance imaging (MRI) guidance is a promising method to improve the clinical performance compared with the manual method. An MR conditional 6-DOF prostate ...
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Article
Analytical modeling and experimental validation of a butterfly-shaped piezoelectric composite transducer
This paper presents an analytical model of a butterfly-shaped piezoelectric composite transducer. The vibration model of the transducer is firstly established based on the lateral and longitudinal deformations...