Intercomparison of high accuracy roundness measurement
An intercomparison measurement was carried out by 12 manufacturers of form measurement equipment, industrial users and national metrology institutes in order to document the present state of technical form calibrations at an accuracy level of approximately 0.1 micron, and to point out ways towards further harmonisation. Two cylindrical transfer standards were measured by all participants to determine the deviations from roundness, straightness, parallelism and cylindricity. The standards were chosen to have some roundness and straightness traces with form deviations comparable to the guide errors of the used instruments (up to 0.5 micron) as well as other traces with characteristic form deviation features (up to 15 microns), which allow the investigation of the amplification and transmission properties of the instruments. In this report the measurements themselves are described and a discussion of the results is presented. Conclusions and recommendations made as a result of the project are also included.
Bibliographic Reference: EUR 14661 EN (1993) 76 pp., MF, ECU 4
Record Number: 199310552 / Last updated on: 1994-11-29
Original language: en
Available languages: en