| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical magnetic circuit in which deformation of a yoke can be prevented without increasing the thickness of a cylindrical yoke for holding a plurality of magnets more than required, and to provide an assembly method thereof.SOLUTION: A cylindrical magnetic circuit 1 generating a magnetic field in annular magnets includes a plurality of magnets 2 arranged annularly, a cylindrical yoke 3 disposed on the radial outside of the plurality of magnets 2 and fixing the plurality of magnets directly or via a separate member, and nonmagnetic members 4 existing between the plurality of magnets 2 adjoining in the circumferential direction. An assembly method of the cylindrical magnetic circuit 1 is also provided. |
