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A Model of the Calibration Blocks of the Magnetic Susceptibility of Disperse Materials for Devices Intended for Magnetic Susceptibility Measurements: I. Calculation of a Calibration Specimen with the Normalized Magnetic Susceptibility of a Disperse Material

  • Magnetic Methods
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Abstract

Calculated parameters of large-volume calibration specimens are presented. The specimens are made of a disperse ferromagnetic mixture with the magnetic susceptibility χc ≥ 1 400 SI units encased in a spherical shell made of a dielectric with the magnetic susceptibility χ dm ≪ 1. The normalized magnetic susceptibility is determined for the calibration specimens. Its limiting value, equal to χ cc = 1.99 SI units, is determined by their spherical form and the volume concentration C V = 0.9, which corresponds to the volume fraction of the ferromagnetic component in the disperse medium. Relative error δ in the measurement of the specimen's magnetic susceptibility does not exceed ±1%.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, Yekaterinburg, Russia

    V. I. Pudov & A. S. Sobolev

Authors
  1. V. I. Pudov
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  2. A. S. Sobolev
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Translated from Defektoskopiya, Vol. 41, No. 11, 2005, pp. 39–44.

Original Russian Text Copyright © 2005 by Pudov, Sobolev.

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Pudov, V.I., Sobolev, A.S. A Model of the Calibration Blocks of the Magnetic Susceptibility of Disperse Materials for Devices Intended for Magnetic Susceptibility Measurements: I. Calculation of a Calibration Specimen with the Normalized Magnetic Susceptibility of a Disperse Material. Russ J Nondestruct Test 41, 731–735 (2005). https://doi.org/10.1007/s11181-006-0026-3

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  • DOI: https://doi.org/10.1007/s11181-006-0026-3

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