Exploration of micro-diamagnetic levitation rotor

We investigated a micro-diamagnetic levitation rotor system (MDLRS) in which the rotor freely levitates above the magnets. To explore the characteristics of the rotor, we carried out numerical simulations of and experiments on the MDLRS. Numerical simulation results show that the steady-state levitation height of the rotor is 130 µm, which is basically consistent with the experimental result (132 µm). Under the actuation of a regulated nitrogen flow, experimental results from the rotation speed of the rotor show that the maximum rate is 500 rpm at a flow rate of 28.16 sccm. Furthermore, an empirical model of the relationship between the flow rate and the rotation speed is proposed.