Differences between revisions 1 and 4 (spanning 3 versions)
Revision 1 as of 2018-07-16 20:20:56
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Revision 4 as of 2018-07-17 05:58:12
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Deletions are marked like this. Additions are marked like this.
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#format jsmath
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|| Material || Temp || perm. || res. ||<-6> depth (m) at frequency ||
|| || C || μ,,r,, || Ω-m || 60 Hz || 400 Hz || 1 KHz || 5 KHz || 20 KHz || 200 KHz ||
|| 3% Si Transformer Steel || 300 || 700 ||
$ \delta = \sqrt{ 2 \rho

|| Material || Temp || perm. || resis. ||<-6> depth (m) at frequency ||
|| || K || $\mu$,,r,, || $\rho$ $\Omega$-m || 60 Hz || 400 Hz || 1 KHz || 5 KHz || 20 KHz || 200 KHz ||
|| 3% Si Transformer Steel || 300 || 700 || || || || || || || ||
|| 3% Si Transformer Steel || 700 || 700? || || || || || || || ||
|| Aluminum || 300 || 1 || || || || || || || ||
|| Aluminum || 700 || 1 || || || || || || || ||
|| Copper || 300 || 1 || || || || || || || ||
|| Copper || 700 || 1 || || || || || || || ||

Skin Depth

$ \delta = \sqrt{ 2 \rho

Material

Temp

perm.

resis.

depth (m) at frequency

K

\mur

\rho \Omega-m

60 Hz

400 Hz

1 KHz

5 KHz

20 KHz

200 KHz

3% Si Transformer Steel

300

700

3% Si Transformer Steel

700

700?

Aluminum

300

1

Aluminum

700

1

Copper

300

1

Copper

700

1

SkinDepth (last edited 2018-07-18 17:58:39 by KeithLofstrom)