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发明授权
CN100464156C 坐标测量仪中的误差补偿方法 有权

坐标测量仪中的误差补偿方法
摘要：
一种校准铰接式探头的方法，包括利用安装在所述铰接式探头上的工件检测探针对已知尺寸的样品进行测量的步骤，其中，所述铰接式探头处于非锁定。生成对应于所述样品测量的值和其已知尺寸之间差值的误差函数对应关系。利用非锁定的所述铰接式探头和相应所使用的修正值对后续工件进行测量。利用安装在铰接式探头上的探针对所述样品进行测量，从而确定其真实尺寸，其中，所述铰接式探头的轴处于锁定。提供一种机械锁，以锁定所述铰接式探头的轴。
摘要（英）：

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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