High-precision positioning of table drive system using strain feedback and disturbance observer

2013 ◽  
Vol 183 (3) ◽  
pp. 46-55
Author(s):  
Kenta Seki ◽  
Keisuke Mochizuki ◽  
Makoto Iwasaki
Keyword(s):  
High Precision ◽  
Disturbance Observer ◽  
Drive System ◽  
Precision Positioning

scholarly journals DESIGN OF A FAST SERVO MULTI-ELEMENT FEED DRIVE

2011 ◽  
Author(s):  
A. T. Elfizy ◽  
M. A. Elbestawi
Keyword(s):  
High Resolution ◽  
Data Storage ◽  
High Precision ◽  
Experimental Testing ◽  
Drive System ◽  
Precision Positioning ◽  
Chatter Suppression ◽  
Feed Drive ◽  
In Series ◽  
Feed Drive System

High precision positioning has become one of the most important features of a precision machine. Such a machine is required to provide versatility, speed and workspace and high precision positioning. Combining coarse (large stroke) and fine (high resolution) drive elements, connected in series, in a multi-element feed drive system provides the capacity of a large workspace with the property of high resolution motion. The performance of the whole system may be improved by adopting the merits of both drive elements to work in a complementary fashion. The multi-element feed drive concept has several applications in manufacturing, robotics and data storage. Fast tool servo in manufacturing is a direct use of the concept and its applications range from the creation of asymmetric surfaces to online chatter suppression. Micro-macro robots are also examples of multi-element feed drive systems that provide advantages when both large work space and accurate end-effector positioning are required. This paper presents an innovative design of a multi-element feed drive system for machine tools. It studies the design methodology and the implementation of the system and investigates several considerations that govern the design process and determine the performance. A multi-element feed drive setup based on a combination of PA and LM was built for experimental testing. Results show that the multi-element feed drive is able to improve the tracking performance as well as the steady state error. It also achieves faster settling time.

Multi-GNSS Dynamic High Precision Positioning in Urban Environment

2017 ◽  
Author(s):  
Javier M�guez ◽  
Jos� V. Perello Gisbert ◽  
J.A. Garcia-Molina ◽  
Paolo Zoccarato ◽  
Paolo Crosta ◽  
...  
Keyword(s):  
Urban Environment ◽  
High Precision ◽  
Precision Positioning

High-Precision Positioning of Galvano Scanners by Structural Design Using Node of Vibration Modes

2011 ◽  
Vol 131 (3) ◽  
pp. 275-282
Author(s):  
Kenta Seki ◽  
Hiroaki Matsuura ◽  
Makoto Iwasaki ◽  
Hiromu Hirai ◽  
Soichi Tohyama
Keyword(s):  
High Precision ◽  
Structural Design ◽  
Vibration Modes ◽  
Precision Positioning

The Main Results Of Developings Made By Kharkov University’s And the Ukrainian National Observatory’s Research Groups In the Field Of High-Precision Positioning, 2011-2012

2012 ◽  
Vol 870 (13) ◽  
pp. 38-50
Author(s):  
A.A. Zhalilo ◽  
◽  
A.A. Zhelanov ◽  
D.A. Shelkovenkov ◽  
I.V. Ditskii ◽  
...  
Keyword(s):  
High Precision ◽  
Research Groups ◽  
Precision Positioning

scholarly journals Design, Analysis and Test of a Hyperbolic Magnetic Field Voice Coil Actuator for Magnetic Levitation Fine Positioning Stage

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1830
Author(s):  
Yiheng Zhou ◽  
Baoquan Kou ◽  
He Zhang ◽  
Lu Zhang ◽  
Likun Wang
Keyword(s):  
Magnetic Field ◽  
High Precision ◽  
Magnetic Levitation ◽  
Structural Parameters ◽  
Industrial Applications ◽  
Degree Of Freedom ◽  
Force Density ◽  
Precision Positioning ◽  
Element Analysis ◽  
Voice Coil Actuator

The multi-degree-of-freedom high-precision positioning system (MHPS) is one of the key technologies in many advanced industrial applications. In this paper, a novel hyperbolic magnetic field voice coil actuator using a rhombus magnet array (HMF-VCA) for MHPS is proposed. Benefiting from the especially designed rhombus magnet array, the proposed HMF-VCA has the advantage of excellent force uniformity, which makes it suitable for multi-degree-of-freedom high-precision positioning applications. First, the basic structure and operation principles of the HMF-VCA are presented. Second, the six-degree-of-freedom force and torque characteristic of the HMF-VCA is studied by three-dimensional finite element analysis (3-D FEA). Third, the influence of structural parameters on force density and force uniformity is investigated, which is conducive to the design and optimization of the HMF-VCA. Finally, a prototype is constructed, and the comparison between the HMF-VCA and conventional VCAs proves the advantage of the proposed topology.

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