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20091123Lect37EE429-529

20091123Lect37EE429-529 - ECE 529 Introduction to EMC...

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ECE 529 Introduction to EMC University at Buffalo Dr. James J. Whalen Lecture 22 13Nov96 ~J ~S~yO{; l t.t Nd\J07 ''2 Noy Oe La+ ss \AkJ
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· Fo I' (Y)u Co I) verStO() CO()S rdef' T wcJ 'v/'fes .Ie> "., Exctmpl e .Ie:: 37fiA J:CJN~.:: 7YJ1A- I.E e . max 1 = 1.257 X 10- 61 Ie ~ .!f (8.16)
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Surface5 Contour C --I (a) --Hinge (b) FIGURE 8.9 The current probe: (a) illustration of Ampere's law; (b) use of the probe to measure currents. X! .2 q ~z. ~. If) ---
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T ('Q 115 +-(?('-] (f) p€ daY) cf.. I (\ 20 {091O 2,(-0..) rl) (1)V~A (.12) ~ 4CJ2) dBJL I--+--+---H-J+HI ·-~--j-+-H 1+f-----1I--/- a - 20 ~ 1+ N 0. 0' -30 .lMHz IOMHz FREOUENCY IOOMHz lOOOMHz FIGURE 8.10 A typical measured current probe transfer impedance (courtesy of Fischer Custom Communications, Inc.) IMHz 12 dBIL ~ 412 ~I
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