| 摘要 |
A device for measuring distance includes in one embodiment an electronic rotary encoder having an input shaft, a distance-measuring wheel connected to the input shaft, a base structure connected to the distance-measuring wheel, a frame structure connected to the base structure, a processor in communication with the rotary encoder, and a housing having an electronic digital display for displaying the longitudinal distance traveled by the work piece with an alpha-numeric and graphical representation of the longitudinal distance traveled by the work piece. The distance-measuring wheel reciprocates along a plane that is transverse to a longitudinal axis of the work piece. Advantageously, the display provides the longitudinal distance traveled by the work piece with an alpha-numeric and graphical representation.
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