Patent ID: 11936270
Assignee: THE UNIVERSITY OF BRITISH COLUMBIA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A displacement device comprising:
a stator comprising:
a plurality of radially-oriented first coils distributed over a first layer at a corresponding first stator Z-location, each of the plurality of first coils generally linearly elongated in a corresponding first radial stator direction in the first layer;
wherein each first radial stator direction extends from a first point;

a moveable stage comprising:
a first magnet array comprising a plurality of spaced apart first magnetization segments, each first magnetization segment generally linearly elongated in a corresponding first stage direction, each first magnetization segment having a first magnetization direction generally orthogonal to its respective direction of elongation and at least two of the first magnetization segments having first magnetization directions that are different from one another;

one or more amplifiers connected to drive current in the plurality of coils and to thereby effect relative movement between the stator and the moveable stage.