| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a position detector being easily producible in spite of the shape of a magnetic flux conveyance part.SOLUTION: A first magnetic flux conveyance part 20 is formed by layering first sheets 21 each composed of a long-sized magnetic substance in the plate thickness direction, and is provided in a rotary body 12. A second magnetic flux conveyance part 30 is formed by layering second sheets 31 each composed of a long-sized magnetic substance in the plate thickness direction, and is provided in the rotary body 12 in such a way that the plate thickness direction of the second sheets 31 is parallel to the plate thickness direction of the first sheets 21 and a long-sized space 101 is formed between the first magnetic flux conveyance part 20 and itself. A first magnet 41 is provided between one end of the first magnetic flux conveyance part 20 and one end of the second magnetic flux conveyance part 30. A second magnet 42 is provided between the other end of the first magnetic flux conveyance part 20 and the other end of the second magnetic flux conveyance part 30. A hall IC 50 is provided in a mold part 9 so as to be capable of moving, in the space 101, in the longitudinal direction of the space 101 relative to the rotary body 12, and outputs a signal corresponding to the density of a magnetic flux passing through.</p> |
