Method of error compensation in a coordinate measuring machine

Details Method of error compensation in a coordinate measuring machine Method of error compensation in a coordinate measuring machine

2004-09-22

2009-08-04

Raevis, Robert R (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Displacement, motion, distance, or position

Reexamination Certificate

active

07568373

ABSTRACT:
A method of calibrating an articulating probe head comprising the steps of measuring an artefact of known dimensions with the workpiece sensing probe mounted on the articulating probe head, in which the articulating probe head is unlocked. An error functional map is generated corresponding to the difference between the measured and known dimensions of the artefact. Subsequent workpieces are measured with the articulating probe head unlocked and the corresponding correction applied. The true dimensions of the artefact may be determined by measuring it with a probe mounted on an articulating probe head in which the axes of the articulating probe head are locked. A mechanical lock is provided to lock the axes of the articulating probe head.

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