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A nice look into how to design an eddy current brake, or magnetic friction clutch.
From the comments:
I’m a physics professor and this whole project is incredible! That’s one whole chapter of the textbook in a single short video!
Tom Stanton - Gearless Magnet Bike https://www.youtube.com/watch?v=Dg8oVR4k5Dk
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nice vid from mr. stanton! he also just showed how a ring of gravity powered magnet would generate? he just provided numbers aswell . thermal losses seemed high? so i will have to keep in mind for druapnir tests? 5 N52 = 7.8w@100 RPM for his design. if you were looking at regenerative breaking? PCB coil would work here. this might also help to dial in a turbine with overspeed controls? so the turbine is kept in a functionable range? considering the ratios you could design a reactive clutch that work on this principle? another great demo for Tom Stanton! if hope AWEs can make use of this?