| 摘要 |
A ironless magnetic motor (21-23) employs a magnetic track (30) and a forcer (40). The forcer (40) is orientated a magnetic field (F) across a linear air gap of the magnetic track (30) to generate a drive force (Fx) parallel to the X drive axis and orthogonal to the Z levitation axis in response to a commutation drive current (Ix) and to generate a force (Fz, Fy) orthogonal to the X drive axis in response to a commutation coil current (Iz, Iy) being superimposed on and phase shifted from the commutation drive current (Ix). To this end, a set of levitating turns of the coil (41) parallel to the X drive axis and orthogonal to the Z levitation axis may be internal or external to magnetic field (F), and the forcer (40) may be centered or offset from a center X-Z longitudinal axis (CP) of the linear air gap. |
