| 摘要 |
PURPOSE:Not to leak electromagnetic noises generated from a magnet by screening surfaces of winding parts of the levitation magnet via an insulator with a metal layer without any gap. CONSTITUTION:A levitation magnet is constructed in such a manner that a winding part 3 is contained in a groove 2 of a core 1 and another winding part 3' is disposed along the back of the core 1. Here, surfaces of each of the windings 3 and 3' are covered via an insulating layer 4 with a metal layer 5 composed of metal foil of aluminum, copper and the like without any gap. Since the electromagnetic noises generated from the magnet are screened by the metal layer 5 covering the surfaces of the winding parts, they scarcely give electromagnetic bad influences on external electronic equipments and the like. |
