Scientific and Technical Journal

ELECTROTECHNIC AND COMPUTER SYSTEMS

ISSN Print 2221-3937
ISSN Online 2221-3805
FEATURES OF ERROR ESTIMATION FOR THE COMPARISON OF IMPEDANCES IN AUTOMATIC QUADRATURE BRIDGES
Abstract:

The article concerns a very important problem in metrology – the increase of precision of automatic quadrature bridge for the assessment of inductivity unit. It was carried out the analysis of measurement error for imbalance universal automatic quadrature bridge and estimated impact of the major destabilizing factors in the measurement of the ratio of two impedances, all of these permits to get high accuracy, simple design and low-cost devices.

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DOI
References
  1. Kibble B. P. Coaxial AC Bridges / B. P. Kibble, G. H. Rayner – Bristol: Adam Hilger Ltd., 1984. – 203 p. [in English].
  2. Automatic quadrature bridge for the reproduction and transfer of the
    inductivity unit in the range of values / M. М. Surdu, А. А-B. Akhmadov, S. А. Akhmadov, S. V.Kursin, A. L. Lameko, М. Ya. Mukharovskii // Українськийметрологічнийжурнал. – 2008. – № 4. – С. 14–22 [in Russian].
  3. Velychko O. М. The evaluation of the uncertainty of calibration results of working inductance standards at the national primary inductance and loss tangent standard / O. М. Velychko, M. М. Surdu, S. М. Shevkun // Системиобробкиінформації. – 2011. - № 1 (91). – С. 131 – 134 [in Russian].
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