Re: skin depth

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Peter Lawrence <Peter.Lawrence-at-Sun.COM> 


I still find it very odd that apparently no one has done skin depth calcs
for cylindrical wire, only for hypothetical infinitely wide infinitely deep
flat plane conductors...

Sounds like a good problem for a math-physics type, or even a
physical-simulation type.

-Pete Lawrence.

 >
 >Original poster: Jim Lux <jimlux-at-earthlink-dot-net>
 >
 >The handy thing to do is to remember the skin depth at a standard frequency
 >(100 kHz is good for TC work), and then remember it scales as the square 
root..
 >So.. reading off the chart..
 >Ti ->1.2mm
 >Al ->.5 mm
 >Cu -> .15 mm
 >showing the usual progression as conductivity gets better, the skin depth
 >decreases...
 >
 >Fe(+C) -> .06 mm
 >showing that ferrous/magnetic materials have very shallow skin depths...
 >
 >Double the frequency, skin depth multiplied by .707
 >Quadruple the frequency, skin depth is halved.
 >
 >Etc...
 >
 >By the way, Chris, if you scanned that chart or copied it from somewhere,
 >you should credit the source.
 >
 >At 11:55 AM 9/22/2003 -0600, you wrote:
 >>Original poster: "chris swinson" <exxos-at-cps-games.co.uk>
 >>Hi all,
 >>
 >>In addiction to my previous post, I have come across a nice chart which I
 >>have uploaded to my space at
 >><http://hot-streamer-dot-com/exxos/>http://hot-streamer-dot-com/exxos/
 >>
 >>enjoy!
 >>Chris
 >>
 >
 >
 >