| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation angle detecting device capable of rotating a magnet with a rotating shaft without using adhesive.SOLUTION: The rotation angle detecting device includes: a metal rotary member 21 which is provided at a first rotary shaft 110 and rotates with the first rotary shaft 110; a magnet 22 which generates a magnetic field and is supported by the rotary member 21; and a relative angle sensor 30 for outputting a value depending on the magnetic field generated by the magnet 22. The rotary member 21 has a second cylindrical part 212 which covers an outer periphery of the first rotary shaft 110 and is provided with a notch 215 in an axial direction of the first rotary shaft 110, and the magnet 22 is formed integrally with the rotary member 21 by being injected and molded around the second cylindrical part 212 of the rotary member 21, using material obtained by mixing magnetic powder and synthetic resin. |
