Institute of Natural and Technical Systems, RF, Sevastopol, Lenin St., 28
In order to increase the accuracy of measuring electrical conductivity of liquids with conductive sensors, new designs of sensors with an electric field closed inside and structural diagrams of meters based on them are proposed and described.
Two meters are considered. In the first meter, the sensor housing is made in the form of a “glass”. Two current and two potential electrodes located inside it form a closed electric field. To organize the best washability of the “glass” with the help of external electromagnets and operating current, magnetohydrodynamic propulsion is implemented.
In the second meter, the sensor is made on a non-conductive disk, on one surface of which the first current electrode is installed in the center, the second current electrode in the form of a conducting hemisphere covers the disk. Potential electrodes are installed under the hemisphere at different distances on the disk in a spiral of Archimedes, which ensures the closure of the electric field inside the measuring cell.
The devices ensure the exclusion of polarization effects on the electrodes, grading according to standard solutions of the “geometric constant”, and correction of its value with changing temperature and pressure.
To quote, follow the DOI link and use the Actions-Cite option or copy:[IEEE] V. A. Gaisky and P. V. Gaisky, “CONDUCTIVE CONDUCTIVITY METERS OF LIQUID MEDIA WITH CLOSED ELECTRIC FIELD,” Monitoring systems of environment, vol. 3, pp. 5–15, Sep. 2019.
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