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I read that last one Frank but I think it is aimed at computer geeks
which I am not. Pleased to see eddy currents are the underlying phenomina responsible for skin depth presumably he explains how the secondary current can overcome that which creats it. At last we have a source for free energy Regards Art Not sure if you got the correct site Art, since there should be nothing concerning computers at: http://www.g3ynh.info/zdocs/comps/zint.html. Also the excellent references at: http://www.g3ynh.info/zdocs/comps/refs.html Note that the central current in the conductor is significantly less than than the surface current. Solution of the Kelvin functions should be easy with Mathcad, or similar, providing only the first few terms of the series are considered. Direct computation of these modified Bessel functions is limited to the latest versions of Mathcad, since the earlier versions cannot handle complex arguments. A more rigorous treatment can be found at the following: http://mathworld.wolfram.com/KelvinFunctions.html http://mathworld.wolfram.com/Bei.html http://mathworld.wolfram.com/Ber.html Where, even with Mathcad 7, using the 20, or so, first terms of the series expansions, I have gotten good agreement with the published curves. Mathcad certainly does not like the upper limits of the series to be infinity. Probably even Excel could handle it. 73, Frank |
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#2
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On Sep 17, 8:48*pm, "Frank" wrote:
I read that last one Frank but I think it is aimed at computer geeks which I am not. Pleased to see eddy currents are the underlying phenomina responsible for skin depth presumably he explains how the secondary current can overcome that which creats it. At last we have a source for free energy Regards Art Not sure if you got the correct site Art, since there should be nothing concerning computers at:http://www.g3ynh.info/zdocs/comps/zint.html. Also the excellent references at:http://www.g3ynh.info/zdocs/comps/refs.html Note that the central current in the conductor is significantly less than than the surface current. *Solution of the Kelvin functions should be easy with Mathcad, or similar, providing only the first few terms of the series are considered. *Direct computation of these modified Bessel functions is limited to the latest versions of Mathcad, since the earlier versions cannot handle complex arguments. A more rigorous treatment can be found at the following:http://mathworld.wolfram.com/KelvinF...m.com/Ber.html Where, even with Mathcad 7, using the 20, or so, first terms of the series expansions, I have gotten good agreement with the published curves. Mathcad certainly does not like the upper limits of the series to be infinity. Probably even Excel could handle it. 73, Frank Thanks for your effots Frank I would appreciate your presence when Tom discusses it as I suspect that both of you overshadow my expertise on the matter Regards Art |
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