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Author Topic: Blotch wall math  (Read 6867 times)
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img  darkspeed
Blotch wall math « on: 2010-01-11, 06:44:58 »
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Posts: 812
Anyone know what factors regulate the speed of the blotch wall's movement through a medium?

Any one know of equations for this?

Does the blotch walls location equate to any sort of displacement?

Thanks!
   
img  BEP
Re: Blotch wall math « Reply #1 on: 2010-01-11, 18:27:53 »
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Posts: 2205
If you are trying to move the Bloch wall then wiki 'magnetic reluctance'. There are formulas similar to Ohm's law.
 
Youn shift the wall on a ferrous rod with magnets on both ends by wraping a central coil on the rod. Then hit the coil with a signal.
   
img  darkspeed
Re: Blotch wall math « Reply #2 on: 2010-01-11, 19:38:30 »
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Posts: 812
Thanks WaveWatcher,

I was trying to decide how to calculate the transition in a small powder toroid core.

I did not know if it was different for straight line vs toroid.
   
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