| 摘要 |
In a spatial coordinate measurement system using an articulated arm and associated electronic data processor, the workpiece having locations to be measured is held by a carrier rotatively supported about an axis. An angular encoder feeds into the processor the relative orientation of the carrier about the axis. The processor virtually translates the origin or point of reference of the arm as a function of the orientation of the carrier so that the carrier and workpiece can be rotated to place the location to be measured in close proximity to the sensing probe of the arm without affecting the relative coordinate measurement. The extent of movement of the arm around the workpiece that would be necessary if the piece remained stationary throughout measurements of all locations, is substantially reduced.
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