[其它]Frequency characteristic of ground impedance for a flat steel plane

Abstract—In this paper, the electric field inside a steel plate with the Tv%7=P;r  
ac skin effect is analyzed using a two-dimensional model and the magnetic :3F[!y3b  
field outside a steel plate is analyzed using a three-dimensional model. EU(e5vO  
The internal impedance and external inductance of a steel plate at different 3.movkj  
frequencies are also calculated.Approximate formulas of the internal %!` %21  
impedance and external inductance are given for a flat conductor. The effects m"L^tSD~  
of the measuring circuit are discussed, and corresponding compensation "
rdpA[>L  
methods are given. The impedance of the steel plate is measured with 0f4 y"9m  
an impedance analyzer, a .. *
r.%/^@  
QPuc{NcB>  

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