WOLFRAM SYSTEM MODELER
mu_rApproxApproximation of relative permeability mu_r as a function of flux density B for soft magnetic materials |
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Wolfram Language
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SystemModel["Modelica.Magnetic.FluxTubes.Material.SoftMagnetic.mu_rApprox"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
The relative permeability mu_r as a function of flux density B for all soft magnetic materials currently included in this library is approximated with the following function [Ro00]:
Two of the five parameters of this equation have a physical meaning, namely the initial relative permeability mu_i at B=0 and the magnetic flux density at maximum permeability B_myMax. B_N is the flux density normalized to latter parameter.
Syntax
mu_r = mu_rApprox(B, mu_i, B_myMax, c_a, c_b, n)
Inputs (6)
| B |
Type: MagneticFluxDensity (T) Description: Flux density in ferromagnetic flux tube element |
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| mu_i |
Type: RelativePermeability Description: Initial relative permeability at B=0 |
| B_myMax |
Type: MagneticFluxDensity (T) Description: Flux density at maximum relative permeability |
| c_a |
Type: Real Description: Coefficient of approximation function |
| c_b |
Type: Real Description: Coefficient of approximation function |
| n |
Type: Real Description: Exponent of approximation function |
Outputs (1)
| mu_r |
Type: RelativePermeability Description: Relative magnetic permeability of ferromagnetic flux tube element |
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