Multi-degree-of-freedom actuator and stage device

Details Multi-degree-of-freedom actuator and stage device Multi-degree-of-freedom actuator and stage device

2010-09-10

2011-10-25

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S012010

Reexamination Certificate

active

08044541

ABSTRACT:
A multi-degree-of-freedom actuator includes a movable element having a plurality of permanent magnets, and a stator including a stator core and a plurality of coils. The permanent magnets are arranged in the X direction such that the number P of poles is an even number of two or more. The coils are of two types: X-direction driving coil and Z-direction driving coil. The Z-direction driving coils the number of which is P are disposed at positions opposite to magnetic poles of the permanent magnets. The X-direction driving coil or coils the number of which is P/2 are each disposed at a position opposite to an intermediate point between two adjacent ones of the magnetic poles of the permanent magnets.

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Written Opinion of the International Searching Authority for International Application No. PCT/JP2009/055406, Jun. 16, 2009.

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