Faraday Balance with Hemispheric Pole Pieces an Approach for Identification Zone with a Stable Value of Induction Pole Gradient

Sandulyak, Alexander; Sandulyak, A. V.; Sandulyak, D. A.; Polismakova, M. N.; Pamme, Nicole

doi:10.15224/978-1-63248-123-8-35

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…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.…”

Section: Desuperposition Conceptmentioning

confidence: 98%

“…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].…”

Section: Introduction the Main Provisions Of (One)-exponential Modelmentioning

confidence: 99%

“…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]:…”

Section: Introduction the Main Provisions Of (One)-exponential Modelmentioning

confidence: 99%

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

Sandulyak

Polismakova

et al. 2017

ITM Web Conf.

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Abstract. Illustrative examples of process media for which the key mass-operational characteristics of magnetophoretic control of ferroimpurities (represented in test semilogarithmic coordinates) are not subject to the basic (one) exponential model are presented and analyzed. The concept is described and implemented of a two-exponential model that assumes the desuperposition of the key control characteristic (for two subfractions of ferroimpurities). The possibilities are demonstrated of performing practical mass calculations of ferroimpurities in a process media sample and corresponding values of their concentration in this media.

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Section: Desuperposition Conceptmentioning

confidence: 98%

Section: Introduction the Main Provisions Of (One)-exponential Modelmentioning

confidence: 99%

Section: Introduction the Main Provisions Of (One)-exponential Modelmentioning

confidence: 99%

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

Sandulyak

Polismakova

et al. 2017

ITM Web Conf.

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Remarks on Selecting Length of Cylindrical Sample to Determine Magnetic Properties of its Material

et al. 2021

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When experimentally studying magnetic properties of the ferromagnetic materials, preferences are often given to a more convenient method involving the use of sufficiently long cylindrical samples with the L length and the D diameter placed in the solenoid field as an alternative to the method based on using classical samples of the toroidal shape (to exclude manifestations of the demagnetizing factor). Currently, required justification is practically missing for specific values of the relative L/D length, which would indicate such [L/D] values (for L/D ≥ [L/D]), at which magnetic properties of a sample (already long enough) correspond to magnetic properties of its material. While the existing recommendations such as [L/D] = 50 are postulated, let us note that relevant experimental studies of magnetic properties of the cylindrical samples with the L/D parameter targeted variation were not made. An attempt was made to fill this gap. For cylindrical steel samples with the different L/D values (from 1 to 50), families of the B magnetic induction and of the μ permeability field dependencies were obtained experimentally using the ballistic method. The sought [L/D] values were determined from the B and μ dependencies on the L/D by the junction abscissa of the ascending and self-similar branches. It was established that in the accepted field strength in the range of H = 0.94--54.2 kА/m magnetizing field, the [L/D] parameter is a variable substantially depending on H (and/or μ). It varies from [L/D] = 10--15 at H = 54.2 kA/m (μ = 30) to [L/D] = 50--60 at H = 4.7 kA/m (μ = 270). And at H < 4.7 kA/m, [L/D] > 50--60, i.e., more than is commonly believed. Thus, it was stated that the data on magnetic properties obtained when using even long samples (L/D = 50) and declared as data on the magnetic properties of the corresponding material, are only close to those with H < 4.7 kA/m. Phenomenological expressions were obtained for the [L/D] determination: exponential with the H argument and logarithmic with the μ argument

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Faraday Balance with Hemispheric Pole Pieces an Approach for Identification Zone with a Stable Value of Induction Pole Gradient

Cited by 2 publications

References 4 publications

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

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

Remarks on Selecting Length of Cylindrical Sample to Determine Magnetic Properties of its Material

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