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Xₗ : Inductive reactance at the given frequency.
#Air core inductor calculator skin#
Rac : AC resistance is calculated using the skin effect and proximity resistance from empirical data collected by Medhurst using the spacing ratio, and length-to-diameter ratio.Inductor model is not accurate once SRF is exceeded.) wire : Length of wire required to wind the inductor.įrequency dependent: (Text goes RED when selected frequency > SRF.SRF : Self-resonant frequency (MHz) for the unloaded coil.Rdc : DC resistance is calculated using conductor length divided by the conductor cross-sectional area, assuming a copper conductor.C : Capacitance is calculated using Knight's 2016 paper on self-resonance and self-capacitance of solenoid coils.L : Inductance is calculated using Nagaoka's equation incorporating his coefficient.
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