Double permanent magnet generator

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SUMMARY

The discussion centers on the design of double permanent magnet generators, specifically questioning why coils are not positioned between two magnets with opposing polarities (N facing in and S facing out). The participants highlight that this configuration would enhance flux density and improve the efficiency of the generator by ensuring more flux lines are perpendicular to the wire in the coil. The conversation also references the effectiveness of permanent magnet motors, suggesting that similar principles could be applied to generator design.

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BilPrestonEsq
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So I can't seem to find out why generators aren't designed so that the coils are passing in between TWO magnets N facing in and S facing out, and then S facing in N facing out etc. The flux density between two magnets is obviously greater and the flux lines are 'straighter' (more lines of flux perpendicular to wire in coil). Anyone?
 
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I must not understand you correctly because I thought that is the way permanent magnet motors are set up and they generally make pretty good generators, or at least as good as a permanent magnet generator can be.
 
I am pretty sure they don't have two sets of magnets one inside the coil and one outside the coil. Atleast I haven't found any designs like that.
 

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