SOME characteristic properties of analytical method of magnetic control of ferroimpurities in various primary and technological media

Abstract

-The paper demonstrates that when defining the content of ferroimpurities in the analyzed media by magnetic control based on measuring the ferroimpurities masses m, which are extracted from the media sample step-by-step, it is crucial to define a functional view of the obtained dependence m on the operation order number n. It allows receiving additional forecast data m by extrapolating this dependence. With corresponding calculations being done, it enables determining the sought total mass of ferroimpurities (including their residual mass). We consider alternate solutions of practical tasks which yield magnetic control results in case of linear and piecewise-linear views (in semi-logarithmic coordinates) of the control mass-operational characteristics.

Two-exponential model of ferroimpurities extraction during magnetic inspection of these impurities content in various media

“…At the same time, along with numerous data [1][2][3][4], which showed the specified correspondence, a number of data revealed, which obviously do not correspond to the regularity (1). Among them -the data of polyoperational magnetophoresis, obtained for the molding mixture, sand sugar, feldspar samples.…”

“…Such control is performed via various methods (depending on specific media), including the polyoperational magnetophoresis method [1][2][3][4]. In particular, in this case a sample of the liquid media is passed through a sectional magnetic analyzer with the number of sections-operations n or n operations of "magnetic scanning" of a granular medium thin layer [1,2].…”

“…In particular, in this case a sample of the liquid media is passed through a sectional magnetic analyzer with the number of sections-operations n or n operations of "magnetic scanning" of a granular medium thin layer [1,2]. This approach leads to one of the conceptual provisions of the physical control model of this type: the analytic form appears of the decrease in mass m of ferroimpurities, extracted from the sample while operations, desirable for the extrapolation analysis, and this form is usually an exponential one [1][2][3][4]:…”