Referenzkugel
Referenzkugel is a German term that translates to "reference sphere" or "calibration sphere." It is a highly precise spherical object used in various metrology and calibration applications. These spheres are manufactured to extremely tight tolerances, ensuring their shape is as close to a perfect sphere as possible. The surface finish is also critical, often being polished to a very smooth and consistent quality.
Referenzkugels are primarily employed to calibrate measuring instruments and systems. For instance, in coordinate measuring machines
Beyond CMMs, referenzkugels find use in the calibration of optical measurement devices, laser scanners, and other