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          趨膚效應的深度計算工具 | Skin Effect Depth

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          From Transmission Lines and Networks by Walter C. Johnson, McGraw-Hill 1963 p58.

          Nominal depth of penetration for a conductor 

          Where ρ = Is the resistivity of the conductor in Ω/m

          f= frequency in Hertz                       

                                              μ = Is the absolute magnetic permeability of the conductor

          The absolute magnetic permeability (μ) = μo x μr 

          μo  = 4π x 10-7 H/m

          The values for μr are from Transmission Line Design Handbook by Brian C Wadell, Artech House 1991 Table 9.3.2 page 446.

          The values for ρ are from CRC Handbook of Chemistry and Physics 1st Student Edition 1998 page F-88 and are for high purity elements at 20°C.

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