Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1996-06-03
1998-07-28
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310323, H02N 204
Patent
active
057866546
ABSTRACT:
A movable stage utilizing an electromechanical transducer. An actuator as a drive source thereof is composed of piezoelectric elements, drive member fixed thereto and a movable member friction-coupled with the drive member. When a drive pulse is applied to the piezoelectric element to cause it to show reciprocal displacements at different rates in the thickness direction, the movable member frictionally coupled with the drive member moves in the predetermined direction to move the movable table coupled with the movable member in the predetermined direction. The movable stage comprising the movable table moving in the two axes or three axes can be constituted by providing the actuator in the two axes or three axes crossing with each other.
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Ishibashi Kenji
Okada Hiroyuki
Okamoto Yasuhiro
Tanijiri Yasushi
Yoshida Ryuichi
Dougherty Thomas M.
Minolta Co. , Ltd.
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