| US 7,503,125 B2 | ||
| Coordinate measuring method and device | ||
| Pascal Jordil, Ecotaux (Switzerland); and Bo Pettersson, London (United Kingdom) | ||
| Assigned to Hexagon Metrology AB, Nacka Strand (Sweden) | ||
| Filed on Apr. 29, 2008, as Appl. No. 12/111,630. | ||
| Claims priority of application No. 07107540 (EP), filed on May 04, 2007. | ||
| Prior Publication US 2008/0271332 A1, Nov. 06, 2008 | ||
| Int. Cl. G01B 5/008 (2006.01); G01B 5/004 (2006.01) | ||
| U.S. Cl. 33—503 [33/551; 33/559] | 14 Claims |
| 1. A method for measuring coordinates on a workpiece using a coordinate probe movably connected to a positioning platform
by means of one or more actuators, the position of the probe relative to the positioning platform being measurable by probe
encoders, the method involving, in any suitable order, the steps of:
moving the positioning platform with respect to a fixed reference to a predetermined location;
controlling said actuators to move the coordinate probe relative to the positioning platform, while keeping the positioning
platform immobile in the fixed reference, to sense the surface of a workpiece in a local workspace accessible to coordinate
probe;
obtaining a local measurement of the workpiece by combining said measure data with probe position data provided by said probe
encoders;
moving the positioning platform with respect to a fixed reference to a different location.
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