Description: Various technologies are known to control the linear dimensions and measure the parameters and concentrations of various liquids and solutions in various industries, including the production of semiconductor devices, as well as in almost all industries and agriculture. When controlling liquids, there are specific conditions and features that are not inherent to solids. Such conditions and parameters include non-constant values of electrical conductivity, acidity and alkalinity as well as possible pulsations in the amount and composition of other substances dissolved in a liquid. Complex technology for solving such a problem relates to technical solutions aimed at modeling situations that allow remotely, without direct contact with the object of control, to assess the state of the object as a whole and the proportions and parameters of the state of the components of the material object, if it is multicomponent.