Final report on RMO key comparison EURAMET.L-K6: CMM 2-D artifact: ball plate

O. Jusko; E. Banreti; R. Bergmans; L. de Chiffre; Antti Lassila; A. Lewis; Z. Ramotowski; F. Saraiva; R. Thalmann; P. Turner; V. Zeleny

doi:10.1088/0026-1394/50/1a/04001

Final report on RMO key comparison EURAMET.L-K6: CMM 2-D artifact: ball plate

O. Jusko, E. Banreti, R. Bergmans, L. de Chiffre, Antti Lassila, A. Lewis, Z. Ramotowski, F. Saraiva, R. Thalmann, P. Turner, V. Zeleny

BA6601 Length metrology

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

An industrial standard steel ball plate of dimension 420 mm with 25 ceramic balls in a 5 × 5 arrangement was circulated among 12 European NMIs. The measurement task was the calibration of the centres of the 25 balls. The measurements were conducted between 2004 and 2006. One NMI withdrew from the comparison. The other 11 NMIs measured the ball plate and delivered data. The artifact was found to be stable during the duration of the comparison. For the analysis both the deviations from the KCRV and the En numbers were calculated. Most results agreed very well within the claimed uncertainty. A few results showed some larger deviations, e.g. length periodic modulations of the differences from the KCRV which still were within the claimed uncertainty, but might be a basis for some optimization of the measurement process. However, because of the significant length of time between the measurements and the final report, the optimization was already completed in most cases.

Original language	English
Article number	04001
Journal	Metrologia
Volume	50
Issue number	1A
DOIs	https://doi.org/10.1088/0026-1394/50/1a/04001
Publication status	Published - 1 Jan 2013
MoE publication type	A1 Journal article-refereed

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title = "Final report on RMO key comparison EURAMET.L-K6: CMM 2-D artifact: ball plate",

abstract = "An industrial standard steel ball plate of dimension 420 mm with 25 ceramic balls in a 5 × 5 arrangement was circulated among 12 European NMIs. The measurement task was the calibration of the centres of the 25 balls. The measurements were conducted between 2004 and 2006. One NMI withdrew from the comparison. The other 11 NMIs measured the ball plate and delivered data. The artifact was found to be stable during the duration of the comparison. For the analysis both the deviations from the KCRV and the En numbers were calculated. Most results agreed very well within the claimed uncertainty. A few results showed some larger deviations, e.g. length periodic modulations of the differences from the KCRV which still were within the claimed uncertainty, but might be a basis for some optimization of the measurement process. However, because of the significant length of time between the measurements and the final report, the optimization was already completed in most cases.",

author = "O. Jusko and E. Banreti and R. Bergmans and {de Chiffre}, L. and Antti Lassila and A. Lewis and Z. Ramotowski and F. Saraiva and R. Thalmann and P. Turner and V. Zeleny",

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T2 - CMM 2-D artifact: ball plate

AU - Jusko, O.

AU - Banreti, E.

AU - Bergmans, R.

AU - de Chiffre, L.

AU - Lassila, Antti

AU - Lewis, A.

AU - Ramotowski, Z.

AU - Saraiva, F.

AU - Thalmann, R.

AU - Turner, P.

AU - Zeleny, V.

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AB - An industrial standard steel ball plate of dimension 420 mm with 25 ceramic balls in a 5 × 5 arrangement was circulated among 12 European NMIs. The measurement task was the calibration of the centres of the 25 balls. The measurements were conducted between 2004 and 2006. One NMI withdrew from the comparison. The other 11 NMIs measured the ball plate and delivered data. The artifact was found to be stable during the duration of the comparison. For the analysis both the deviations from the KCRV and the En numbers were calculated. Most results agreed very well within the claimed uncertainty. A few results showed some larger deviations, e.g. length periodic modulations of the differences from the KCRV which still were within the claimed uncertainty, but might be a basis for some optimization of the measurement process. However, because of the significant length of time between the measurements and the final report, the optimization was already completed in most cases.

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Final report on RMO key comparison EURAMET.L-K6: CMM 2-D artifact: ball plate

Abstract

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