Метрологія та прилади (Dec 2017)

Interlaboratory Comparisons of Calibration Results of the Precision Electric Voltage ThermoConverter

  • O. Velychko,
  • V. Isayev

Journal volume & issue
no. 6
pp. 14 – 18

Abstract

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The article presents the results of the first round of interlaboratory comparisons in a type of electrical measurements — an AC voltage rated at 3 V in the frequency range from 20 Hz to 1 MHz. Comparison of the measurement results obtained du­ring the calibration of the precision thermoelectric voltage conver­ter ПНТЭ-6А by five laboratories was done radially for nine months in 2016—2017. The deviations of the results obtained by each labo­ratory are determined and their correctness is evaluated taking into account the uncertainty of the measurements with the help of a modified criterion on the operation statistics for the selected frequencies.

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