Final report on COOMET key comparison of AC/DC voltage transfer references (COOMET.EM-K6.a)

Velychko, Oleh; Darmenko, Yu

doi:10.1088/0026-1394/53/1a/01011

Cited by 10 publications

(10 citation statements)

References 3 publications

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“…KV of COOMET.EM-K6.a of AC/DC voltage transfer of AC voltage of 3 V at frequency of 20 kHz is X KV = À2.0 μV/V, and corresponding combined standard uncertainty is u(X KV ) = 1.9 μV/V (k = 2 for coverage level of 0.95). DoE for NMI/DI participants of COOMET.EM-K6.a comparison for AC voltage of 3 V at frequency of 20 kHz [19] is shown in Figure 6.…”

Section: The Data Evaluation Of Standard Comparisonsmentioning

confidence: 99%

Metrological Traceability at Different Measurement Levels

Velychko¹,

Gordiyenko²

2019

Standards, Methods and Solutions of Metrology

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The international agreements are the basis for establishing the global metrological traceability at different measurement levels. The concepts and concept relations around metrological traceability are presented. An important element of providing the metrological traceability is the evaluation of measurement uncertainty. The procedure of linking of key and supplementary comparison results is described. Linking of key and supplementary comparison results of the Regional Metrology Organization for some quantities according to the described procedure was presented. Results for all participants of presented key and supplementary comparisons are satisfactory for chi-square test and E n number. The procedure of linking of key or supplementary comparison and national inter-laboratory comparison results is described. This procedure can be used for practical evaluation of specific interlaboratory comparison results on a national level in different countries by means of laboratory results of the National Metrology Institute and Designated Institute. This procedure can contribute the mutual recognition of measurement and testing results by different countries. Linking of key comparison and inter-laboratory comparison results for some quantities according to the described procedure was presented. Results for all participants of presented key comparison and interlaboratory comparison are satisfactory for chi-square test, E n number, z scores and ζ scores.

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Section: The Data Evaluation Of Standard Comparisonsmentioning

confidence: 99%

Metrological Traceability at Different Measurement Levels

Velychko¹,

Gordiyenko²

2019

Standards, Methods and Solutions of Metrology

View full text Add to dashboard Cite

show abstract

“…The coaxial connector for input voltage of the traveling standard П=ТЭ-6А is completed by detachable adapter in order to provide adaptation to usual connector N-type (female) [4].…”

Section: Travelling Standards For Comparisonsmentioning

confidence: 99%

“…Proposed to link the results from COOMET.EM-K6.a [4] to the CCEM-K6.a [5] which carried out between 1993 and 1999. VNIIM (Russia) is linking NMI as far as they participated in CCEM-K6.a.…”

Section: Proposed Linking Key Comparisons Proceduresmentioning

confidence: 99%

“…The degree of equivalence D i of AC/DC voltage transfer references and its expanded uncertainty U(D i ) that participated in COOMET.EM-K6.a [4] and COOMET. EM-S1 [6] comparisons are shown in Table 5 for frequencies 1 kHz; 20 kHz; 100 kHz; 1 MHz.…”

Section: Proposed Linking Key and Supplementary Comparisons Proceduresmentioning

confidence: 99%

“…The proposed procedures linking of results of KCs CC of electric and magnetism (CCEM) and RMO of AC/DC voltage transfer references (COOMET.EM-K6.a [4] to CCEM-K6.a [5]), and key and SCs of RMOs of AC/DC voltage transfer references (COOMET.EM-S1 [6] to COOMET.EM-K6.a) was realized with using results of linking NMI (VNIIM, Russia).…”

Section: Introductionmentioning

confidence: 99%

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