| 摘要 |
A cylindrically shaped rotator is provided that can hold either a fiber or a fiber holder along its central axis. A drive roller running parallel to the central axis of the rotator drives the rotator. The diameter of the portion of the drive roller that operates on the rotator is smaller than the diameter of the rotator, so that even large rotational movement of the drive roller produces only small rotational movement of the rotator. The rotator may have a friction band wrapped about its circumference. The drive roller then contacts the friction band directly to rotate the rotator. Alternately, the drive roller may be connected to the rotator by a belt, chain, gear or the like. The rotator may also have markings on its surface, so that the rotational orientation of the rotator and rotational movement of the rotator can be identified. The markings may be binary markings that can be automatically recognized by, for example, a conventional bar code reader.
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