Keywords
model
four-terminal axial be-shielded object
measuring bridge імпеданс
модель
чотиризатискний об’єкт
вимірювальний міст
How to Cite
Abstract
An impedance measurement object with an H-shaped four-terminal equivalent substitution circuit is considered. An error analysis was performed for sensors whose non-informative supply resistances are of the same order or exceed the measured impedance. A new definition of four-terminal impedance has been proposed, namely four-terminal axial be-shielded (FTABS) measuring object. Based on such new definition, the scheme of axial-bishielded bridges is proposed for precision measurement of temperature and electrolytic conductivity of liquids. Such bridges differ from the well-known coaxial bridges since the former ones have an additional circuit for equipotential protection, which is located between the flow circuits of direct and reverse currents. References 18, figures 7, tables 3.
References
Christie S. Hunter. Experimental Determination of the Laws of Magneto-Electric Induction in Different Masses of the Same Metal, and of Its Intensity in Different Metals. Philosophical Transactions of the Royal Society of London. 1833. Vol. 123. Pp. 95-142. URL: http://www.jstor.org/stable/107990 (accessed at 10.02.2018). DOI: https://doi.org/10.1098/rstl.1833.0011
Wheatstone Charles. An Account of Several New Instruments and Processes for Determining the Constants of a Voltaic Circuit. Philosophical Transactions of the Royal Society of London. 1843. Vol. 133. Pp. 303-327. DOI: https://doi.org/10.1098/rstl.1843.0014
Hague B., Foord B.R. Alternating current bridge methods. Pitman Publishing, 1971. 603 p.
Kelvin_bridge. URL: https://en.wikipedia.org/wiki/Kelvin_bridge (accessed at 10.07.2019).
Gibbings D.L. An alternating current analogue of the Kelvin double bridge. Proc. IEE. 1962. Vol. 109C. P. 307. DOI: https://doi.org/10.1049/pi-c.1962.0045
Hill J.J., Miller A.P. An A.C. Double bridge with inductively coupled ratio arms for platinum resistance thermome-try. Proc. IEE. 1963. Vol. 110. No 2. P. 453. DOI: https://doi.org/10.1049/piee.1963.0068
Foord T.R., Langlands R.C., Binnie A.J. Transformer-ratio bridge network with precise lead compensation. Proc. IEE. 1963. Vol. 110. No 9. Pp. 1693-1700. DOI: https://doi.org/10.1049/piee.1963.0240
Cutkosky R.D. Four-terminal pair networks as precision admittance and impedance standards. IEEE Trans. Comun. Electron. 1964. Vol. 80 (70). Pp. 19-22. DOI: https://doi.org/10.1109/TCOME.1964.6539563
Kibble B.P., Rayner G.N. Coaxial AC Bridges. Bristol, U.K.: Adam Hilger Ltd., 1984. 203 p.
Awan S., Kibble B., Schurr J. Coaxial Electrical Circuits for Interference-free Measurements. London, UK: The Institution of Engineering and Technology, 2011. 321 p. DOI: https://doi.org/10.1049/PBEL013E
Jensen H.D. Final Report of Key Comparison CCQM-K36. Metrologia. Vol. 47. No 1A. Pp. 08025. DOI: https://doi.org/10.1088/0026-1394/47/1A/08025
Mikhal A.A., Glukhenkyi A.I., Warsza Z.L. Factors of AC Field Inhomogeneity in Impedance Measurement of Cylindrical Conductors. Recent Advances in Systems, Control and Information Technology, Advances in Intelligent Sys-tems and Computing Vol. 543. Springer Cham. Pp. 535-545. DOI: https://doi.org/10.1007/978-3-319-48923-0_57
Surdu M.M., Monastyrsky Z.Ya. Variational methods for improving the accuracy of immittance meters. Kyiv: Institute of Electrodynamics of NAS of Ukraine, 2015. 385 p. (Ukr.)
Cabiati F., D'Elia V. High-accuracy voltage and current transmission by a four-coaxial cable. Conference on Preci-sion Electromagnetic Measurements. Conference Digest (CPEM 2000). Sydney, Australia, 14-19 May 2000. Pp 435-436.
Cabiati F., D'Elia V. A new architecture for high-accuracy admittance measuring systems. Conference Digest Con-ference on Precision Electromagnetic Measurements. Ottawa, ON, Canada, June 16-21, 2002. No 5. Pp. 178-179. DOI: https://doi.org/10.1109/CPEM.2002.1034778
Gallegaro L. Electrical impedance: principles, measurement, and applications. Ser. in Sensors. USA: CRC press: Taylor & Francis, 2013. 308 p.
Mikhal A.A., Warsza Z.L. Electromagnetic Protection in High Precision Tri-axial Thermometric AC Bridge. In: Progress in Automation, Robotics and Measuring Techniques. Vol. 3: Measuring Techniques and Systems, Advances in Intelligent Systems and Computing Vol. 352. Springer Cham, 2015. Pp. 147–156. DOI: https://doi.org/10.1007/978-3-319-15835-8_17
Mikhal A.A., Warsza Z.L., Gavrylkin V.G. Primary Standard of Electrolytic Conductivity Based on the AC Four Electrode Cell. Challenges in Automation, Robotics and Measurement Techniques. Advances in Intelligent Systems and Computing. Vol. 440. Springer Cham, 2016. Pp. 867–879. DOI: https://doi.org/10.1007/978-3-319-29357-8_77
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2022 Array