КОМБИНИРОВАННЫЙ МЕТОД ИЗМЕРЕНИЯ ИМПЕДАНСА В ТЕРМОМЕТРИЧЕСКИХ МОСТАХ С ВАРИАЦИОННЫМ УРАВНОВЕШИВАНИЕМ
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...
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| Date: | 2013 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Інститут електродинаміки НАН України, Київ
2013
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| Subjects: | |
| Online Access: | https://techned.org.ua/index.php/techned/article/view/1200 |
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| Journal Title: | Technical Electrodynamics |
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Technical Electrodynamics| Summary: | 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. |
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