Hysteresis is a function of remanence (how much magnetism is "remembered") of a material and has no time function. Once magnetized, material will remain magnetized until an opposing field is supplied (or the material is shocked or heated beyone it's Curie temp).
Viscosity is a function of the rate of rise of the field in time. The rate rise appears to affect the work performed. Terry On Thu, Feb 5, 2009 at 11:57 AM, OrionWorks <svj.orionwo...@gmail.com> wrote: > From Terry, > >> ... Their claim is that magnetic force is time variant. >> This is a remarkable claim. > > You previously mention that the variation is "...fast in, slow out". > > Looking at a typical magnetic hysteresis graphic, like at: > > http://en.wikipedia.org/wiki/Hysteresis (See: the two Magnetic > hysteresis graphics) > > The graphic obviously shows a "loop". The effects of Force are clearly > different on the intake verses the outtake. > > It's my understanding we have understood the basic principals of > Hysteresis for years. We have even exploited its effects such as in > utilizing delayed dependent relays. Often, however, the effect seems > to be considered an inconvenience. Many ingenious methods have been > devised to avoid its unwanted effects, Wiki sez: "...recording systems > first overdrive the entire system into a known state using a process > known as bias." I bet Mike Carrell might have a comment or two to > share concerning close encounters with this effect and his long career > with RCA. > > The wiki graphics unfortunately doesn't make it clear to me how the > hysteresis effect might be considered "fast in, and slow out." The > graphics shows the realignment effect going in "fast". But then on the > outtake the force seems to be released just as quickly. I don't see > any obvious delayed effect on the release/outtake. As such, I don't > see an obvious "imbalance." > > What am I not seeing? Can you clarify? > > Regards > Steven Vincent Johnson > www.OrionWorks.com > www.zazzle.com/orionworks > >
