We present experimental and theoretical studies of magnetic levitation of hydrogen gas bubble surrounded by liquid hydrogen confined in a semi-transparent spherical shell of 3 mm internal diameter. Such shells are used as targets for the Inertial Confinement Fusion (ICF), for which a homogeneous (within a few per-cent) layer of a hydrogen isotope should be deposited on the internal walls of the...

This paper studies a superconducting maglev submersible cryogenic liquid pump (CLP) using magnetic bearing (SMB). A new structure is proposed for the self-stability of high-temperature levitation, and compact disk motor-pump. The rotor axial-flux motor connected with centrifugal impeller to form an impeller-rotor CLP. Supported by SMB system, rotates frictionlessly self-stabilisation as suspens...

This paper presents the derivation of the model for a high-precision positioning system using magnetic levitation, which is achieved by an arrangement of Permanent Magnet Linear Synchronous Motors. LQR set-point stabilization is performed as an introduction to the more advanced nonlinear control design presented in [9].