SINGLE MAGNETIC TRACK TWO AXIS POSITIONING SYSTEM

摘要

A positioning system (100, 120) employs a magnetic motor and a roller bearing assembly. The magnetic motor includes a magnetic track (101, 121) having a linear air gap, and a forcer (102, 122) having a plurality of coils disposed within the linear air gap. The roller bearing assembly includes an integration of a base roller bearing unit (106-108, 126, 127) and a carrier roller bearing unit (103-105, 123-125) for facilitating a two degrees of freedom of the magnetic motor based on a superimposition of commutation laws that are orthogonal.