Advances in High-Precision Magnetic Levitation Actuators

Dear Colleagues,

Magnetic levitation is widely used in various fields, including rail transit, bearings, motors, precision motion systems, microactuators, biomedicine, chemistry and materials science. Because there is no mechanical contact, magnetic levitation systems have the advantages of friction-free motion, multi-degree-of-freedom drive, vacuum compatibility, response speed, pollution-free operation, etc. Therefore, the drive and control of magnetic levitation systems have attracted extensive attention in the past decades. In particular, a levitating microactuator can eliminate the mechanical connection with the moving part and overcome the impact of friction on the inertial force on the micro-scale. In biomedicine, it can suspend and separate various diamagnetic materials according to the density and achieve nanometer positioning accuracy in the precision engineering neighborhood. However, due to the work needs of magnetic levitation systems, the drive and control indicators need to achieve an extremely low error and a better performance in resisting disturbance and parameter perturbation. The demand for the drive principle and strategy, control algorithm and implementation of magnetic levitation systems is challenging and interesting.

The purpose of this Special Issue is to collect valuable theoretical, simulational and experimental results of novel structure designs, perfomance optimizations, multi-field coupling, function coupling or decoupling, and control issues of both the magnetic levitation and driver, as well as the relevant core components, prototypes, and case analysis research for practical applications such as magnetic levitation bearings, plane motors, magnetic levitation precision positioning, levitation microactuators, particle and cell manipulation, and magnetic robot drive.

Dr. Jun Zheng
Prof. Dr. Mochimitsu Komori
Guest Editors

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