| US 7,523,561 B2 | ||
| Measuring methods for use on machine tools | ||
| Geoffrey McFarland, Dursley (United Kingdom) | ||
| Assigned to Renishaw PLC, Gloucestershire (United Kingdom) | ||
| Filed on Mar. 31, 2008, as Appl. No. 12/78,445. | ||
| Application 12/078445 is a continuation of application No. 10/570657, abandoned, previously published as PCT/GB2004/004066, filed on Sep. 24, 2004. | ||
| Claims priority of application No. 0322362.5 (GB), filed on Sep. 24, 2003. | ||
| Prior Publication US 2008/0184579 A1, Aug. 07, 2008 | ||
| Int. Cl. G01B 5/008 (2006.01) | ||
| U.S. Cl. 33—554 | 33 Claims |
| 1. A method of measuring workpieces on a machine tool, comprising the steps of:
causing relative movement between an analogue or scanning probe and a workpiece, along a pre-defined path comprising nominal
positions of the probe relative to the workpiece, under control of a part program;
during the movement, taking measurements of a position of a surface of the workpiece relative to the probe, using an output
of the probe; and
combining said measurements from the output of the probe with assumed data derived from said part program.
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