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measure_local_current [2021/03/22 22:07]
stanzurek created
measure_local_current [2021/06/08 20:02] (current)
stanzurek
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 **Solution**: Use line integral. **Solution**: Use line integral.
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 **Example**: There is a round wire with non-uniform current distribution due to [[http://e-magnetica.pl/doku.php/skin effect|skin effect]] and [[http://e-magnetica.pl/doku.php/proximity effect|proximity effect]]. We are interested in the current only in the upper half of the circular wire. It might be needed to add a "dummy" point at the centre, because otherwise an arc will be drawn, not a straight line.  **Example**: There is a round wire with non-uniform current distribution due to [[http://e-magnetica.pl/doku.php/skin effect|skin effect]] and [[http://e-magnetica.pl/doku.php/proximity effect|proximity effect]]. We are interested in the current only in the upper half of the circular wire. It might be needed to add a "dummy" point at the centre, because otherwise an arc will be drawn, not a straight line. 
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 //Note: it is more accurate to integrate through air in this case, rather than along the edge of the wire, because the integral is somewhat more accurate. Integrating over the whole wire along the edge gives 0.9365 A. But drawing a closed contour in the air around the wire gives 1.0006 A.//  //Note: it is more accurate to integrate through air in this case, rather than along the edge of the wire, because the integral is somewhat more accurate. Integrating over the whole wire along the edge gives 0.9365 A. But drawing a closed contour in the air around the wire gives 1.0006 A.// 
  
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measure_local_current.1616447278.txt.gz · Last modified: 2021/03/22 22:07 by stanzurek