PTBnews 1.2021
Ball plates and hole plates are measurement standards typically used to ensure the traceability of coordinate measuring machines. To arrange the plates vertically, one single supporting stand is often used that is placed laterally to the standard. Numerical simulations based on the finite-element method that were performed at PTB have shown that such an arrangement no longer fulfills the ever stricter requirements for the calibration of modern, high-precision coordinate measuring machines.
