КОМБИНИРОВАННЫЙ МЕТОД ИЗМЕРЕНИЯ ИМПЕДАНСА В ТЕРМОМЕТРИЧЕСКИХ МОСТАХ С ВАРИАЦИОННЫМ УРАВНОВЕШИВАНИЕМ

А.А.  Mikhal; D.V.  Meleshchuk; A.A.  Dushko

No. 4 (2013), Information Measuring Systems in Electric Power Engineering

No. 4 (2013)

Information Measuring Systems in Electric Power Engineering

COMBINED METHOD OF IMPEDANCE MEASURING IN THERMOMETRIC BRIDGES WITH VARIATION BALANCING

Published 2013-06-25

А.А. Mikhal ⁺⁻
D.V. Meleshchuk⁺⁻
A.A. Dushko⁺⁻

А.А. Mikhal

Institute of Elektrodynamics National Academy of Science of Ukraine, pr. Peremohy, 56, Kyiv-57, 03680, Ukraine

D.V. Meleshchuk

Institute of Elektrodynamics National Academy of Science of Ukraine, pr. Peremohy, 56, Kyiv-57, 03680, Ukraine

A.A. Dushko

Institute of Elektrodynamics National Academy of Science of Ukraine, pr. Peremohy, 56, Kyiv-57, 03680, Ukraine

ARTICLE_13_PDF (Українська)

Keywords

measurement
bridge
balancing
variation method
error измерение
мост
уравновешивание
вариационный метод
погрешность

How to Cite

[1]

Михаль , А. , Мелещук , Д. and Душко , А. 2013. COMBINED METHOD OF IMPEDANCE MEASURING IN THERMOMETRIC BRIDGES WITH VARIATION BALANCING . Tekhnichna Elektrodynamika. 4 (Jun. 2013), 088.

Abstract

Combined method of impedance measuring, realized in devices with bridge measuring chain, is investigated. The above method is based on measuring chain reaction on the variation of the signal imbalance. It is designed to balance the measurement circuit and the subsequent refinement of the measurement result on the residual signal. Algorithm for application of variation method of balancing for two-parameter transformer measuring bridge is given. Possibility for increase of resolution of measuring device with limited discreteness of inductive divider is demonstrated. Peculiarities of variation method for assessment of imbalance of improved thermometric bridge with additional control loop are examined. Error, arising during use of simplified expressions for definition of proposed measuring chain imbalance parameters, is investigated. References 7, figures 3.

ARTICLE_13_PDF (Українська)

References

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