Development of a six positions digital electromagnetic actuator

Deshmukh, Ajinkya; Petit, Lionel; Khan, Muneeb Ullah; Lamarque, Frédéric; Prelle, Christine

doi:10.1109/aim.2017.8014145

Cited by 9 publications

(1 citation statement)

References 14 publications

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“…The holding function corresponds to the holding of a mobile part at any of the discrete positions to ensure the actuator's repeatability and the digital behavior even in the presence of disturbances. In the literature, several solutions have been employed to realize this function using magnetic holding [35,36], compliant structures [37], and locking actuators [38].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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.

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