A one-dimensional test body for calibration, monitoring and traceability of coordinate measuring instruments. The test piece fulfills all demands of the ISO 10360 and VDI/V~ guideline 2617 of a calibration standard for the monitorir" J" of CMM's. The step-gauge KOBA-step is successfully in use for years. This is the reason why this calibration standard is recommended by national and international standards for the calibration of coordinate measuring instruments.
The evaluation of the calibration data can be done by using the universal GUK-S software.
KOBA-Ball bar is a one-dimensional test body for monitoring large coordinate measuring machines. The construction meets the special demands for a test piece of such a size (nominal length up to 8 m). The supporting frame is a carrying body for the real material measure. It is made of rigid CFK/GFK aluminium composite construction that absorbs vibrations.The material measure is realized by a combination of ceramic spheres with a distance rod in between. With this standard artefact we introduce a transportable and dismountable calibration master according to the special ~ demands of large volume column and bridge-type meL.. .-I suring machines. A further field of applications for the ball bar are the new optic-tactile measuring systems such as laser trackers. The evaluation of the calibration data can de done by using the universal GUK-KS software.
