| 摘要 |
A slip ring includes an exterior, a plurality of brushes, a plurality of rings, a brush fixing member that causes the plurality of brushes to contact the plurality of rings and that supports the plurality of brushes, and a rotating shaft that is inserted into the plurality of rings and that supports the plurality of rings. The slip ring also includes a reference signal generation unit configured to generate a reference signal, and a detection unit configured to detect a signal, wherein a circuit is formed by the reference signal generation unit, a first brush, which is at least one of the plurality of brushes, a first ring that contacts the first brush, and the detection unit, and wherein a state of contact of the first brush and the first ring is detected based on the signal detected by the detection unit. |
