Method for calibrating a measuring apparatus for measuring body parts and other workpieces, and measuring apparatus suitable for carrying out the method

Method for calibrating a measuring apparatus configured to measure body parts and other workpieces, comprising the following steps:

• a) providing a measuring device comprising:
• an industrial robot having a movable arm,
• a sensor which is fastened to the movable arm and configured to measure the pose of workpieces relative to the sensor,
• a carrying structure, the pose of which relative to the industrial robot is known, and
• a calibration body comprising:
• a carrier,
• an alignment element arranged rigidly relative to the carrier, said alignment element interacting with a counter piece provided on the carrying structure,
• a calibration element rigidly fastened to the carrier,
• an encoding zone, in which data which specify the pose of the calibration element relative to the alignment element are encoded;
• b) aligning the calibration body on the carrying structure with the aid of the alignment element and the counter piece;
• c) approaching the encoding zone with the sensor;
• d) reading the data encoded in the encoding zone with the aid of the sensor;
• e) ascertaining the pose of the calibration element relative to the carrying structure using the data read in step d);
• f) approaching the calibration element with the sensor;
• and
• g) calibrating the measuring apparatus by virtue of the sensor measuring the pose of the calibration element.