On the Design and Stability of a Reluctance Actuator for Precision Motion Systems

2021 ◽  
Author(s):  
Mohammad Al Saaideh ◽  
Natheer Alatawneh ◽  
Mohammad Al Janaideh
Keyword(s):  
Precision Motion

Identification of a precision motion stage based on the Hammerstein-Wiener model

2019 ◽  
Author(s):  
Zhu Zhang ◽  
Delong Zhang ◽  
Haiyang Zheng ◽  
Tao Huang ◽  
Yangqiu Xie
Keyword(s):  
Wiener Model ◽  
Motion Stage ◽  
Precision Motion

Ultra‐Sensitive and Stretchable Ionic Skins for High‐Precision Motion Monitoring

2021 ◽  
pp. 2010199
Author(s):  
Jeong Hui Kim ◽  
Kyung Gook Cho ◽  
Dae Hyun Cho ◽  
Kihyon Hong ◽  
Keun Hyung Lee
Keyword(s):  
High Precision ◽  
Precision Motion

scholarly journals Compensation of Hysteresis in Hybrid Reluctance Actuator for High-Precision Motion

2019 ◽  
Vol 52 (15) ◽  
pp. 477-482 ◽  
Author(s):  
Francesco Cigarini ◽  
Shingo Ito ◽  
Julian Konig ◽  
Andreas Sinn ◽  
Georg Schitter
Keyword(s):  
High Precision ◽  
Precision Motion

Micro- and Nano-Fabrication of Polymer Based Microfluidic Platforms for BioMEMS Applications

2002 ◽  
Vol 729 ◽  
Author(s):  
Siyi Lai ◽  
L. James Lee ◽  
Liyong Yu ◽  
Kurt W. Koelling ◽  
Marc J. Madou
Keyword(s):  
Low Cost ◽  
Gas Injection ◽  
Surface Characteristics ◽  
Tissue Growth ◽  
Thin Layers ◽  
Microfluidic Platforms ◽  
Precision Motion Control ◽  
Nano Fabrication ◽  
Local Modification ◽  
Precision Motion

AbstractIn this paper, we review the approaches developed in our laboratory for polymer-based micro/nanofabrication. For fabrication of microscale features, UV-LIGA (UV-lithography, electroplating, and molding) technology was applied for low-cost mass production. For fabrication of sub-micron or nanoscale features, a novel nano-manufacturing protocol is being developed. The protocol applies a novel nano-lithography imprinting process on an ultra-precision motion-control station. It is capable of economically producing well-defined pores or channels at the nanometer scale on thin polymer layers. The formed thin layers can be used as nano-filters for chemical or bio-separation. They can also be integrated into miniaturized devices for cell immunoprotection or tissue growth. For bonding of polymer-based microfluidic platforms, a novel resin-gas injection-assisted technique has been developed that achieves both bonding and surface modification. This new approach can easily seal microfluidic devices with micron and sub-micron sized channels without blocking the flow path. It can also be used to modify the channel shape, size, and surface characteristics (e.g., hydrophilicity, degree of protein adsorption). By applying the masking technique, local modification of the channel surface can be achieved through cascade resin-gas injection.

Precision Motion of Iterative Learning Controller Using Adaptive Filter Bandwidth Tuning by Improved Particle Swarm Optimization Technique

2013 ◽  
Vol 376 ◽  
pp. 349-353
Author(s):  
Yi Cheng Huang ◽  
Shu Ting Li ◽  
Kuan Heng Peng
Keyword(s):  
Particle Swarm Optimization ◽  
Pid Controller ◽  
Iterative Learning ◽  
Swarm Optimization ◽  
Filter Bandwidth ◽  
Improved Particle Swarm Optimization ◽  
Simulation Results ◽  
Adaptive Bandwidth ◽  
Precision Motion ◽  
Zero Phase

This paper utilized the Improved Particle Swarm Optimization (IPSO) technique for adjusting the gains of PID and the bandwidth of zero-phase Butterworth Filter of an Iterative Learning Controller (ILC) for precision motion. Simulation results show that IPSO-ILC-PID controller without adaptive bandwidth filter tuning have the chance of producing high frequencies in the error signals when the filter bandwidth is fixed for every repetition. However the learnable and unlearnable error signals should be separated for bettering control process. Thus the adaptive bandwidth of a zero phase filter in ILC-PID controller with IPSO tuning is applied to one single motion axis of a CNC table machine. Simulation results show that the developed controller can cancel the errors efficiently as repetition goes. The frequency response of the error signals is analyzed by the empirical mode decomposition (EMD) and the Hilbert-Huang Transform (HHT) method. Errors are reduced and validated by ILC with adaptive bandwidth filtering design.

New Type of Hydraulic Rotary Actuator; Development and Application in a Large Telerobotic Manipulator System

2001 ◽  
Author(s):  
John R. Haas
Keyword(s):  
Modular Design ◽  
Large Diameter ◽  
Stick Slip ◽  
Precision Motion Control ◽  
Constant Torque ◽  
Rotary Actuator ◽  
Continuous Rotation ◽  
Potential Applications ◽  
New Type ◽  
Precision Motion

Abstract This paper describes a new type of hydraulic rotary actuator specifically developed to provide precision motion control in a very large, man rated, underwater telerobotic manipulator system. The high pressure, high torque rotary actuators are hydrostatically balanced, provide continuous rotation, constant torque output, exhibit minimal “stick-slip” and zero backlash. It is believed that the combination of features and the performance exhibited by these actuators represent an improvement in actuator technology to such an extent as to make projects previously determined unfeasible, now practical. Features of particular design value are a very large diameter through bore, and a truly modular design permitting use as an integral structural member. This paper will address design rationale, operating principles, key design features, product development highlights, an astronaut trainer case study, future development and potential applications.

The Study of Control System for Reconfigurable Machine Tool Model

2011 ◽  
Vol 188 ◽  
pp. 499-502
Author(s):  
L. Zhou ◽  
Wen Jie Nie ◽  
Z.R. Liao ◽  
X.R. Liang ◽  
G.Q. Pan
Keyword(s):  
Control System ◽  
Machine Tool ◽  
Motion Control ◽  
Machine Tools ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Precision Motion Control ◽  
Single Function ◽  
Precision Motion ◽  
Reconfigurable Machine Tool

With the higher requirements of product processing, single-function machine can not meet the production needs. By analyzing the principles of reconfigurable machine tools, based on 51 single-chip microcomputer, this article researches the control system of reconfigurable machine tool, implements precision motion control for motors. The research can also reduce costs, so the practicality and economy all have a certain advantage, which will help promote the use in practice.

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