>From Hoyt: > Very interesting speculation. Thanks. > > From tests I have done, Sv can be from microseconds to seconds depending on > the material. It's on the order of a millisecond for Nd2Fe14B. > > Hoyt Stearns
Thanks, Hoyt, >From microseconds to seconds. Wow! That's a huge range! I would seem logical to assume that the majority of the Neodymium family of PMs would share, roughly speaking, the same viscotic characteristics - on the order of a millisecond or so. This is just a guess on my part, but I would speculate that ferric and ceramic PMs are likely to cycle much more slowly than Neodymium PMs - on the order approaching a second. I wonder if the size of the PM can make a difference as well. Would you agree, or not. Regards Steven Vincent Johnson www.OrionWorks.com www.zazzle.com/orionworks
