Report on Gulfmet supplementary comparison measurement of gauge blocks by interferometry (GULFMET.L-S2)
Abstract
This Bilateral Comparison of gauge blocks calibration by interferometry was held in 2017. The gauge blocks measured in the comparison, are short (2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 10 mm, 50 mm, 80 mm and 100 mm) and long gauge blocks (200 mm, 500 mm and 600 mm).
The blocks were inspected and illustrated prior and after the comparison according to the stability. The degree of equivalence is calculated for each of the gauge blocks and the results show that there is a degree of equivalence within 1. The latest comparison, which UME had participated, is EURAMET.L-K1.2011, calibration of short and long gage blocks by interferometry. Since GULFMET is a new RMO, this comparison can provide a link to the EURAMET key comparison. KEY WORDS FOR SEARCH Gauge blocks, length measurement, interferometry, comparison Main text To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCL, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).- Publication:
-
Metrologia
- Pub Date:
- January 2019
- DOI:
- 10.1088/0026-1394/56/1A/04001
- Bibcode:
- 2019Metro..56.4001S