| 摘要 |
PROBLEM TO BE SOLVED: To provide a relative movement information detecting apparatus that facilitates the routing of wiring when a movable member that moves in an axial direction while rotating to a fixed member is provided and can sharply reduce the possibility of disconnection. SOLUTION: There is the movable member 2 that moves in the axial direction while rotating to the fixed member 3. A magnetized element 4 that is formed in a strip form so that N and S poles are alternated is spirally wound to the movable member 2, and a sensor 5 and a processing section 6 are provided in the fixed member 3. The sensor 5 detects magnetic information from the magnetized element 4. The processing section 6 obtains information regarding relative movement based on the information from the sensor 5. COPYRIGHT: (C)2004,JPO
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