Planar Micro-Positioning Device Based on a 3D Digital Electromagnetic Actuator
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In this paper, a 3D digital actuator is used to realize 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.Abstract:
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.read more
Citations
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Design, Micro-Fabrication, and Characterization of a 3-DoF Micro-Conveyor Based on Digital Actuators
TL;DR: In this article , an optimal 3-DoF micro-conveyor based on electromagnetic digital actuators array is proposed, which consists of four EDA actuators and two specific control strategies have been built to realize the 3-DOF planner conveyance task.
Proceedings ArticleDOI
Characterization of a trilateration method using Hall effect sensors for microrobot position tracking
TL;DR: In this paper , a 2D measurement system using Hall effect sensor array for micro robotic applications is presented, which uses a trilateration method to track the position of a microrobot equipped with a permanent magnet.
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