| 摘要 |
PURPOSE:To keep the position of the rotation center of a shaft constant without requiring a complex control system. CONSTITUTION:The first permanent magnet 1 and the second permanent magnet 2 are fixed at an interval in the axial direction of a rotary shaft 5 at one end section of the rotary shaft 5. The magnetization direction of the permanent magnets 1, 2 is parallel with the axial direction of the rotary shaft 5, and permanent magnets 1, 2 are arranged with the same poles faced to each other. The permanent magnets 1, 2 are inserted into the hollow section of a hollow cylindrical superconductor 3 opened on one end face. When the superconductor 3 is cooled to its critical temperature or below, the superconductor 3 is made superconductive, the repulsion against the superconductor 3 is applied to the permanent magnets 1, 2, and the permanent magnets 1, 2 are supported at the axis section of the superconductor 3. |
