High precision roundness measurement by error separation techniques

Project Description

The comparison has been proposed and is organised by CEM (ES) as a continuation of the EURAMET comparison L-S23.(2013). The aim is to solve difficulties found by some participants in the previous comparison due to the lack of metrological quality of the circulating sphere. CEM, after locating high quality standard spheres, proposes this new comparison in order to know the real capabilities of measuring roundness in spherical standards by applying error separation techniques to seek the lowest uncertainty. The comparison is ready to start after consultation with some participants, most of whom were also involved in the previous comparison.

Length (L)
Coordinating Institute
CEM (Spain)