Abstract
The ability to determine and control the normalized concentrations has been established using the experimentally obtained dependencies of the active and reactive constituents of conductivity in the wide frequency range of the electromagnetic field on the composition of the multicomponent fluid and the impurity concentrations. For high-aqueous substances dissolved in water (cooling liquids), a method for controlling the qualitative and quantitative composition is developed. It is based on the comparison of the measured and experimentally established active conductivity component and the comparison of the corresponding dependencies in the frequency field of the reactive component of conductivity. The developed electric method allows quantitative and qualitative estimation of the composition of the coolant on the contents of controlled components in the short time (up to 2 seconds) in a non-laboratory environment and to ensure uninterrupted operation of the equipment.
Highlights
Water mixtures are the most commonly used objects for measurement and control in industry, medicine, agriculture, and environmental monitoring
The results of studies using RLC-meters allow us to determine the dependence of electrical parameters of liquids in wide ranges of frequencies of the electromagnetic field on the chemical nature and concentrations of their components
The use of the established electrical parameters corresponding to the normalized concentrations of the components improves the informativity of conductometric studies of multicomponent liquids
Summary
Water mixtures are the most commonly used objects for measurement and control in industry, medicine, agriculture, and environmental monitoring. The standard control characteristics in these industries are concentrations – the mass of substances, per unit volume of the object of control. In cases where the object of research is in a solid or loose state, its composition is extracted in a liquid for further long-term analytical manipulations in a laboratory. Another important requirement for a liquid under standard controls is a twocomponent system – with the content of the control substance and the unchanged composition of the solvent
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