Feedback control of electromagnetic actuator with three degrees of freedom using optical image sensors

2012 ◽  
Vol 181 (2) ◽  
pp. 47-54 ◽  
Author(s):  
Shuhei Maeda ◽  
Katsuhiro Hirata ◽  
Mingyu Tong
Keyword(s):  
Feedback Control ◽  
Degrees Of Freedom ◽  
Image Sensors ◽  
Optical Image ◽  
Electromagnetic Actuator ◽  
Three Degrees Of Freedom

A new three degrees of freedom electromagnetic actuator

2003 ◽  
Author(s):  
A. Foggia ◽  
E. Olivier ◽  
F. Chappuis ◽  
J.C. Sabonnadiere
Keyword(s):  
Degrees Of Freedom ◽  
Electromagnetic Actuator ◽  
Three Degrees Of Freedom

scholarly journals Planar Micro-Positioning Device Based on a 3D Digital Electromagnetic Actuator

Actuators ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 310
Author(s):  
Ajinkya Deshmukh ◽  
Laurent Petit ◽  
Muneeb-ullah Khan ◽  
Frédéric Lamarque ◽  
Christine Prelle
Keyword(s):  
Degrees Of Freedom ◽  
Electromagnetic Actuator ◽  
Stick Slip ◽  
Positioning Device ◽  
Manufacturing Assembly ◽  
Component Manufacturing ◽  
Different Levels ◽  
Planar Motions ◽  
Three Degrees Of Freedom ◽  
A Current

In this paper, a novel micro-positioning device based on a 3D digital actuator is presented. The proposed system allows realizing planar motions of micro-objects, which could be implemented in several applications where micro-positioning tasks are needed such as micro-component manufacturing/assembly, biomedicine, scanning microscopy, etc. The device has three degrees of freedom, and it is able to achieve planar motions of a mobile plate in the xy-plane at two different levels along the z-axis. It consists of a hexagonal mobile part composed of a permanent magnet that can reach twelve discrete positions distributed between two z-axis levels (six at each level). Two different approaches are presented to perform positioning tasks of the plate using the digital actuator: the stick-slip and the lift-mode approaches. A comparison between these two approaches is provided on the basis of the plate displacement with respect to different current values and conveyed mass. It was observed that for a current of 2 A, the actuator is able to displace a mass of 1.15 g over a distance of 0.08 mm. The optimal positioning range of the planar device was found to be ±5.40 mm and ±7.05 mm along the x- and y-axis, respectively.

scholarly journals Active Disturbance Rejection for a Three Degrees of Freedom Gyroscope

2018 ◽  
Vol 51 (13) ◽  
pp. 372-377 ◽  
Author(s):  
Juan E. Andrade García ◽  
Alejandra Ferreira de Loza ◽  
Luis T. Aguilar ◽  
Ramón I. Verdés
Keyword(s):  
Disturbance Rejection ◽  
Degrees Of Freedom ◽  
Active Disturbance Rejection ◽  
Three Degrees Of Freedom
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