| 摘要 |
A drive for an XY-table is disclosed, having a stationary, ferromagnetic and U-shaped yoke (1) including a first limb (1.1) and a second limb (1.2) which lie together in one plane (XY), and having a movable ferromagnetic bar (2), the yoke (1) and the bar (2) carrying a magnetic circuit with a flux (¦) that takes a path across air gaps between the limbs (1.1, 1.2) and the bar (2), and brings about vertical reluctance forces there which counteract the gravitational force of the bar (2). Bar (2) lies parallel to and below the plane (XY) defined by the limbs (1.1, 1.2). An XY-table with such a drive is disclosed. A separate drive to reverse the direction of movement (X) of the table (6) is also disclosed. |
