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单词 skin depth
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skin depth
skin depth n. [compare sense 12e] the distance from the surface of a conductor at which an electromagnetic wave of a given frequency is attenuated by a factor of 1/e (e = 2·718…).
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the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > measure of
flux of force1863
skin depth1935
1935 Proc. Physical Soc. 47 917 If the two skin-depths are almost equal, no magnetization will be produced when the tension and magnetic field are balanced in the above manner.
1998 Jrnl. Appl. Physics 83 6804 Many problems in computational magnetics involve computation of fields which decay within a skin depth δ.
2002 R. Schmitt Electromagnetics Explained ix. 183 At a depth of five skin depths, the signal diminishes to about 0·7% of its surface value.
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