On a Novel Magnet-Driven Linear Actuator with Long Stroke and Nano-Positioning Accuracy

2015 ◽  
pp. 630-638
Author(s):  
Letong Ma ◽  
Junwei Chen ◽  
Bo Zhang ◽  
Han Ding
Keyword(s):  
Linear Actuator ◽  
Positioning Accuracy ◽  
Long Stroke

scholarly journals Simulation of the dynamic behaviour of a permanent magnet linear actuator

2010 ◽  
Vol 23 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Ivan Yatchev ◽  
Vultchan Gueorgiev ◽  
Racho Ivanov ◽  
Krastio Hinov
Keyword(s):  
Permanent Magnet ◽  
Dynamic Behaviour ◽  
Electric Circuit ◽  
Linear Actuator ◽  
Soft Magnetic ◽  
Mechanical Motion ◽  
Field Problem ◽  
Motion Problems ◽  
Long Stroke ◽  
The Magnetic Field

The paper presents simulation of the dynamics of a permanent magnet linear actuator with soft magnetic mover and relatively long stroke 60 mm. The simulation is carried out using decoupled approach where the magnetic field problem is solved separately from the electric circuit and mechanical motion problems. The obtained results are compared with experiment. .

Electrostatic Linear Actuator With a Long Stroke Rolling Spring Guide

2005 ◽  
Vol 10 (5) ◽  
pp. 597-601 ◽  
Author(s):  
K.-Y. Huang ◽  
C.-L. Hsu
Keyword(s):  
Linear Actuator ◽  
Long Stroke

Model-Based Commutation of a Long-Stroke Magnetically Levitated Linear Actuator

2009 ◽  
Vol 45 (6) ◽  
pp. 1982-1990 ◽  
Author(s):  
C.M.M. van Lierop ◽  
J.W. Jansen ◽  
A. Damen ◽  
E.A. Lomonova ◽  
P.P.J. van den Bosch ◽  
...  
Keyword(s):  
Linear Actuator ◽  
Model Based ◽  
Magnetically Levitated ◽  
Long Stroke

Evaluation of Thrust Force and Positioning Accuracy of a New Linear Motor

2005 ◽  
Vol 295-296 ◽  
pp. 613-618
Author(s):  
Xin Chen ◽  
Kiyoshi Takamasu ◽  
M. Nikaidou
Keyword(s):  
Experimental Data ◽  
Thrust Force ◽  
Linear Motor ◽  
Linear Actuator ◽  
Static Characteristics ◽  
Positioning Accuracy ◽  
Measuring Methods ◽  
Absolute Positioning ◽  
The Relationship ◽  
Maximum Thrust

A new linear motor based on the Sawyer principle is firstly introduced. Some important features of the linear actuator are discussed for better understanding of its performances and functions with absolute positioning. We investigated the static characteristics of the linear motor such as the relationship between the current and the maximum thrust force (I-F curve), the relationship between the displacement and the thrust force (D-F curve), and the positioning accuracy. The measuring methods for these characteristics are explained in detail. We analyzed the experimental data and evaluated the characteristics. We obtained that the suitable working current is 1A and the maximum thrust force is 15N for the linear motor. The positioning accuracy is ±12µm.

The Design and Analysis of the Actuator with Long Stroke and Micro-Displacement

2013 ◽  
Vol 389 ◽  
pp. 668-674 ◽  
Author(s):  
Ge Pan ◽  
Ya Nan Zhang ◽  
Lin Zhi Sun ◽  
Lin Yong Shen ◽  
Cheng Gang Wang
Keyword(s):  
Control System ◽  
Pulse Train ◽  
High Reliability ◽  
Low Cost ◽  
Linear Displacement ◽  
Stepper Motor ◽  
Guide Rail ◽  
Positioning Accuracy ◽  
Long Stroke ◽  
Single Power

In this paper, a new actuator with nanoscale micro-displacement is reported. The actuator not only can achieve a large stroke and nanoscale positioning accuracy, but also has the advantages of compact, low cost, high reliability and a single control system. The drive is controlled by a single power, and it consists of stepper motor, harmonic gear reducer, screw and the guide rail. The stepper motor is controlled by the pulse train and the harmonic gear reducer has high precision and small hysteresis. The precision screw converts the rotary motion of the stepper motor into linear displacement, and the plunger pushes the target in nanoscale motion accuracy through the guide rail finally.

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