When Faraday identified/named diamagnetism (relative permeability μ < 1) in 1845, he reported in Arts. 2253-2260 of [1] that a glass rod would align itself at right angles to the lines of magnetic field of his laboratory electromagnet. He also noted in Art. 2269 that such object moved “into the positions of weakest magnetic action.” Faraday’s test objects were suspended from a string, but W. Th...

Diamagnetic levitation is a technique that uses a strong, spatially varying magnetic field to reproduce aspects of weightlessness, on the Earth. We used a superconducting magnet to levitate growing bacterial cultures for up to 18 h, to determine the effect of diamagnetic levitation on all phases of the bacterial growth cycle. We find that diamagnetic levitation increases the rate of population ...

Sound can levitate objects of different sizes and materials through air, water and tissue. This allows us to manipulate cells, liquids, compounds or living things without touching or contaminating them. However, acoustic levitation has required the targets to be enclosed with acoustic elements or had limited manoeuvrability. Here we optimize the phases used to drive an ultrasonic phased array a...

Abstract: In this paper, we present the design and simulation of a new fuzzy logic supervisory control approach that is designed to improve the performance of a PID controlled magnetic levitation system, such systems are inherently unstable and require means of control to stabilize their operation; the fuzzy logic controller continuously monitors system variables (error signal, and its derivati...

Purpose. The purpose of this work is the formation conceptual approaches to construction an effective integrated system simultaneous synchronized control movement and suspension a maglev vehicle – magnetoplane. Methodology. paper uses technique for with mutually coordinated application both levitation methods, electromagnetic electrodynamic, through individual energy supply each track coil. Fin...

We consider the steady levitation of a rigid plate on a thin air cushion with prescribed injection velocity. This injection velocity is assumed to be much larger than that in a conventional Prandtl boundary layer, so that inertial effects dominate. After applying the classical ‘blowhard’ theory of Cole & Aroesty (1968) to the two-dimensional version of the problem, it is shown that in three dim...