| 摘要 |
Encoder assembly for use with a dial type scale. The assembly includes a base, a bearing mounted on the base which is mounted in the scale in place of one of the bearings for the indicator shaft, and a pinion and shaft which replace the pinion and shaft of the scale. An encoder disc is mounted on the shaft, and means responsive to light passing through the encoder disc is mounted on the base for providing an output signal corresponding to the rotational position of the shaft.
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