ابزارکالیبراسیون دستگاه اندازه گیری آلمان KOBA

Is a one-dimensional test body for monitoring large CMM’s.
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 bridgetype
measuring 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
be done by using the universal GUK-KS software.