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Method of error compensation in a coordinate measuring machine | Verfahren zur Fehlerkompensierung in einer Koordinatenmessmaschine | Procédé de compensation d'erreurs dans une machine de mesure de coordonnées

Patentnummer:EP2559965B1
IPC Hauptklasse:G01B002104
Anmelder:
Erfinder:MCFARLAND, Geoffrey (0)
The Manse; 22 Church Road; Upper Cam; Dursley, Gloucestershire GL11 5PG, GB
MCMURTRY, David (0)
Roberts, Park Farm Stancombe; Dursley, Gloucestershire GL11 6AT, GB
NAI, Kenneth (0)
Cheng-Hoe, 89 Warrender Park Road, Edinburgh EH9 1EW, GB
WESTON, Nicholas (0)
John, Monksford; 1 Edderston Road, Peebles Peebleshire EH45 9DT, GB
Anmeldung:22.09.04
Offenlegung:22.09.03
Patenterteilung:14.03.18

Abstract / Hauptanspruch
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.

EP2559965B1


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