| 摘要 |
<p>The bearing is used to centre, w.r.t an axis (X-X), a moving object (B, B') w.r.t an other object (A, A'). The bearing includes a permanent magnet (3,3') which is disposed parallel to a reference axis (Z-Z). A coil (9,9') is wound around a ferromagnetic core (4,4') carried by the second object. A ferromagnetic armature is formed by a part (6) mounted on the moving object and another part mounted on the other object. The two parts are adapted to enclosed the magnetic flux generated by the magnet and the coil across the gaps separating the two parts. The second part includes two parallel plates (1,2) which are perpendicular to the reference axis, and on which the core is fixed. The system is stabilised by a control circuit (12) linked to a position, speed or acceleration sensor of the moving ferromagnetic part.</p> |
