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3D Helmholtz Coil-based Hybrid Manipulation for Active Locomotion of Magnetic Micro/Nano Robots
Journal of Magnetics, Volume 23, Number 4, 31 Dec 2018, Pages 578-583
Abstract
This study presents hybrid control based on three-axis Helmholtz coil for manipulation of magnetic micro/nano robots. In general, magnetic force and torque control requires both Maxwell and Helmholtz coils. Therefore,
the configuration of the magnetic manipulation system is complex and requires many power supplies. The hybrid method controls the three-axis Helmholtz coil and three power supplies through mechanical switch control
to generate magnetic force and torque. Magnetic torque is controlled by the three-axis Helmholtz coil with a rotating magnetic field, and magnetic force is controlled by generating gradient magnetic field through the
separated coils by the switch control. Three switches separate each Helmholtz coil and six switches control the separated six coil with the three power supplies. The hybrid control can provide simple configuration of coil
system, various active locomotion, and precision control in complex environments. To verify the proposed method, we conducted magnetic simulation with various experimental tests.
the configuration of the magnetic manipulation system is complex and requires many power supplies. The hybrid method controls the three-axis Helmholtz coil and three power supplies through mechanical switch control
to generate magnetic force and torque. Magnetic torque is controlled by the three-axis Helmholtz coil with a rotating magnetic field, and magnetic force is controlled by generating gradient magnetic field through the
separated coils by the switch control. Three switches separate each Helmholtz coil and six switches control the separated six coil with the three power supplies. The hybrid control can provide simple configuration of coil
system, various active locomotion, and precision control in complex environments. To verify the proposed method, we conducted magnetic simulation with various experimental tests.
Keywords: hybrid control of magnetic force and torque; switch control; Helmholtz coil
DOI: https://doi.org/10.4283/JMAG.2018.23.4.578
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