From what I have found the cogging reduces with speed of rotation, the first movements have huge cogging effect, this leads me to the following conclusion:- I think it is the speed of magnetisation and demagnetisation of the iron, the pickup coils need to be between the magnets, the iron picks up the magnetism then gives it up over the coil, then depleted it picks up the reverse from the coil, BEMF. The iron then passes to the next magnet and the process repeats, basically the iron acts as a magnet of very short life or one that is switched off by the BEMF as opposed to causing load on the rotor. The important main thing is the iron has to be fast switching on and off, so silicon iron as in transformers is a must. This would lead to a setup of magnet coil next to one another, then small space to allow the BEMF to be lost, that part needs to be tested, then magnet and coil again and so on. The effect is the BEMF is thrown to waste and so no load is created on rotor, and that is the secret as I see it. Lets face it, the BEMF is the load that stops the possibility of a loop, without it the only load is friction in turning the rotor, so why not throw it out via a metal that looses it fast to the ambient or adds to the next magnetic impulse, " that last part is a very strong possibility and so the spacing would not be needed", to be tested soon. Regards Mike 
---------------------------
"All truth passes through three stages. First, it is ridiculed, second it is violently opposed, and third, it is accepted as self-evident."
Arthur Schopenhauer, Philosopher, 1788-1860
As a general rule, the most successful person in life is the person that has the best information.
|
feature is available which provides a place all members can chat, either publicly or privately.
Author
Topic: Flux Gate Interrupter, BEMF Redirector (Read 322694 times)
