Support of metrological traceability of capacitance measurements in Ukraine

Authors

  • Oleh Velychko State Enterprise “All-Ukrainian State Scientific and Production Centre for Standardization, Metrology, Certification and Protection of Consumer”, (SE “Ukrmetrteststandard”) Metrolohychna, str., 4, Kyiv, Ukraine, 03143, Ukraine https://orcid.org/0000-0002-6564-4144
  • Sergii Shevkun State Enterprise “All-Ukrainian State Scientific and Production Centre for Standardization, Metrology, Certification and Protection of Consumer”, (SE “Ukrmetrteststandard”) Metrolohychna, str., 4, Kyiv, Ukraine, 03143, Ukraine https://orcid.org/0000-0003-1923-6227

DOI:

https://doi.org/10.15587/1729-4061.2017.101897

Keywords:

comparison of standards, metrological traceability, electrical capacitance, national metrology institute, calibration and measurement capabilities

Abstract

The comparative analysis of the results of the RMO international key and supplementary comparisons of national standards of units of electrical capacitance is conducted with the aim of evaluation of convergence. For the comparisons, the reference values with the expanded uncertainties are calculated and the degrees of equivalence of standards of participants and expanded uncertainties for the nominal values of measures of 10 pF and 100 pF on frequencies of 1 kHz and 1.592 kHz are determined. Metrological traceability of the national standard of every participant of comparisons to the units of the International system of units SI is determined.

For verification of consistency of the results of comparisons, the values of the χ2 criterion for the results of comparisons of standards of participants taking into account the measurement uncertainty are calculated. The obtained values of the criterion of consistency for the participants can be considered consistent, which is the objective confirmation of the measurement uncertainties declared by the participants.

The evaluation of calibration and measurement capabilities of Ukraine for the unit of electrical capacitance is realized. The methodology of evaluation of measurement uncertainty in the wide range of capacitance values (from 10 pF to 10 nF) is proposed. The results the calculations of the values of measurement uncertainties according to the proposed methodology revealed that the results correspond to the data published in the international key comparison database for Ukraine in the range of capacitance values from 10 pF to 10 nF on frequencies of 1 kHz and 1.592 kHz.

Author Biographies

Oleh Velychko, State Enterprise “All-Ukrainian State Scientific and Production Centre for Standardization, Metrology, Certification and Protection of Consumer”, (SE “Ukrmetrteststandard”) Metrolohychna, str., 4, Kyiv, Ukraine, 03143

Professor, Doctor of Technical Sciences, Director

Scientific and Production Institute of Electromagnetic Measurements

Sergii Shevkun, State Enterprise “All-Ukrainian State Scientific and Production Centre for Standardization, Metrology, Certification and Protection of Consumer”, (SE “Ukrmetrteststandard”) Metrolohychna, str., 4, Kyiv, Ukraine, 03143

PhD, Head of Department

Department of state standards of electromagnetic quantity, time and frequency

References

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Published

2017-06-15

How to Cite

Velychko, O., & Shevkun, S. (2017). Support of metrological traceability of capacitance measurements in Ukraine. Eastern-European Journal of Enterprise Technologies, 3(9 (87), 4–10. https://doi.org/10.15587/1729-4061.2017.101897

Issue

Vol. 3 No. 9 (87) (2017): Information and controlling system

Section

Information and controlling system

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Copyright (c) 2017 Oleh Velychko, Sergii Shevkun

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