R&D Institute "Molniya"
National Technical University
Aiming at meeting novel customers\' requirements many companies worldwide design and produce new aircrafts for public, cargo and other special transportations. In order to be legally exploited, a flying machine has to fulfill a number of different, foremost safety, requirements. One of such demands is EMC of the on-board electrical and electronic systems, namely the stability of the equipment ...
L. Rossini, O. Chételat, E. Onillon, Y. Perriard
Centre Suisse d’Electronique et Microtechnique – CSEM, Neuchâtel, Switzerland
Ecole Polytechnique Federale de Lausanne - EPFL, Lausanne, Switzerland
The reaction sphere is a magnetic bearing electromagnetic spherical actuator for satellite attitude control. The reaction sphere consists in a 3D motor composed of a 20-coil stator and an 8-pole permanent magnet rotor. The rotor is synthesized wit a mosaic of 728 cylindrical magnets glued on the rotor back-iron so as to approximate the selected magnetization pattern. These cylindrical magnets ...