| 摘要 |
<p>The invention relates to a coordinate measurement machine for determination of at least one space coordinate of a measurement point on an measured object, with a first frame element 11, a second frame element 4, a linear drive unit 7 with a motor for moving the second frame element 4 relative to the first frame element 11 in a direction of movement and a position measurement instrument, for determining a drive position of the second frame element relative to the first frame element. Therein the drive unit has limited stiffness and dynamic deflections on movement. The machine comprises a mechanical coupler 3 from the drive unit 12 to the second frame element 4, which coupler 3 comprises a first part 3A fixed to the drive unit 12 and a second part 3B fixed to the second frame element 4, which parts 3A, 3B are movable relative to each other by an active compensation actuator 5. The active compensation actuator 5 is built in such a way to shift the second frame element 4 against the drive unit 12 to introduce a counter-displacement in such a way that the dynamic deflections are at least partially compensated.</p> |
