Key Takeaways:
Coordinate measuring machines need motion free of runout, vibration, and thermal drift. Hydrostatic guideways and spindles give CMMs the stable, repeatable motion their accuracy classes demand.
Measurement Demands Perfect 运动
A 三坐标测量机's 精度为only as good as 运动的its probe-carrying 轴. Any 径向跳动, stick-slip, or thermal drift injects error into every measurement. 静压 guideways与主轴 remove 那些 error sources by 浮动 轴 on oil films.

Stable, Repeatable 轴
无接触 油膜 gives sub-micron 径向跳动, no low-speed 爬行,与excellent 阻尼—so probe path为平稳与repeatable. Oil flow 也 carries heat away evenly, preventing thermal drift 该 plagues mechanical guides.
结果用于Metrology
CMMs 制造 on 静压 轴 hold their calibrated 精度 longer与across wider temperature swings, reducing re-calibration frequency与improving trust在measured data.