Linear drive device

Details Linear drive device Linear drive device

1997-12-30

1999-12-28

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Linear

H02K 4100

Patent

active

060085525

ABSTRACT:
A linear drive device provided with a magnetic sensor which is movable together with a movable piece for reading magnetic information of a position sensing magnetized portion on a stator, and a magnetic shield member for shielding the magnetic sensor from a magnetic flux applied by a drive magnetized portion on the stator. A linear drive device provided with a first sensor for sensing a variation in magnetic polarity of a field magnet on a stator, and a second sensor for reading information on an encoder scale, the first and second sensors being arranged at positions in a region around the stator except for a region above the upper surface of the stator.

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