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US07669344B2 Hysteresis compensation in a coordinate measurement machine 有权
坐标测量机中的滞后补偿

Hysteresis compensation in a coordinate measurement machine
Abstract:
A single-scale, single-drive coordinate measuring machine that compensates for hysteresis error caused by friction at the non-driven end of the bridge. The coordinate measuring machine is calibrated to estimate hysteresis effects at one or more distances from the scale. Measurements of workpieces are adjusted based on the calibration data and the distances of the carriage from the scale at the point of the measurements. The scale and the drive system may be positioned on opposite guideways.
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