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Measuring objects in concealed places

Licence partner wanted
Especially interesting for
  • coordinate metrology
  • dimensional metrology
Measurement principle of the new procedure

In order to measure the dimensions of large objects with high accuracy, traceable laser interferometers are integrated into coordinate measuring machines. Hereby, the measurement points located on the object's surface are sampled, and their position is determined interferometrically. In the case of large objects such as, e.g., gears, the beam might be interrupted by the object itself which then cannot be measured completely. By means of an additional measurement during which the object is not located inside the measuring volume, additional coordinated are acquired and taken into account in a subsequent computation of the object's geometry. In this way, systematic errors are corrected. This procedure is also suited for the high-precision detection/ positioning for manipulators such as robot's arms or working tools.