Differences between revisions 7 and 8
 ⇤ ← Revision 7 as of 2018-07-17 06:02:23 → Size: 1103 Editor: KeithLofstrom Comment: ← Revision 8 as of 2018-07-17 06:04:27 → ⇥ Size: 1118 Editor: KeithLofstrom Comment: Deletions are marked like this. Additions are marked like this. Line 7: Line 7: || || 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? ||     || || || || || || || || || K || $\mu_r$ || $\rho~~\Omega$-m || 60 Hz || 400 Hz || 1 KHz || 5 KHz || 20 KHz || 200 KHz |||| 3% Si Transformer Steel || 300 || 700 || 5e-7 || || || || || || |||| 3% Si Transformer Steel || 700 || 700? || 5e-7 || || || || || || ||

# Skin Depth

\delta = \sqrt{ 2 \rho / \omega \mu_r \mu_0 } . . . . . 2 / \mu_0 = 1.59e6 m/H

 Material Temp perm. resis. 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 5e-7 3% Si Transformer Steel 700 700? 5e-7 Aluminum 300 1 Aluminum 700 1 Copper 300 1 Copper 700 1

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