Miniaturization of Magnetic Suspension System with Laterally Control Flux-path Mechanism

(2nd report: Realization of Suspension)

Abstract

A magnetic suspension system using rotational flux-path control mechanism is developed. In the developed fluxpath control mechanism, a pair of gear-shaped flux control plates are attached to the top and bottom of a permanent magnet (magnetic source); they are surrounded by a ferromagnetic outer yoke with teeth facing the control plates. The gear-shaped control plate is rotated to change the relative angle to the teeth of the outer yoke. The attractive force acting on the ferromagnetic floator is adjusted by rotating the control plates. Stable suspension is achieved in the developed apparatus. It is experimentally shown that the suspension is maintained in the presence of a disturbance.