Interpretation of the method of images in estimating superconducting levitation

Stable thrust on a finite-sized magnet above a Meissner superconducting torus

“…4 Following this approach, both the force and torque between the magnet and the superconductor can be easily computed, whatever their shape. [5][6][7] In fact, in previous work, one of the authors demonstrated that stability in one degree of freedom for a magnet levitating above a superconducting cylinder could be achieved. 6 In previous work, the levitation of a permanent magnet above a Meissner superconducting torus has been analyzed for a limited number of points in the axis using a finite elements approach according to the above-mentioned model.…”

Engineering and performance of a contactless linear slider based on superconducting magnetic levitation for precision positioning

“…The sliding DoF (X direction) is generated thanks to a high translational symmetry of the applied magnetic field on the superconductor within the stroke of the mechanism. However, the choice of shape, configuration and size of the superconductors and magnets to determine the mechanical behavior is not a small issue and require analytical and experimental studies [35][36][37][38][39][40]. A initial mechanical characterization of the linear slider has been presented in [35].…”

Mechanics of a magnet and a Meissner superconducting ring at arbitrary position and orientation

“…Recently, the authors have proposed [12][13][14][15] a local general expression for the force and torque between a magnetic field (eventually a magnet) and a superconductor in the Meissner state. This expression is useful for finite-elements modelling and therefore may be used for a rational engineering of magnet-superconductor mechanical devices.…”