Magnet coil cores, demagnetization power and Lenz delay.

[MarkE]

Increasing magnetic flux density in the ferrite by fastening magnets to it causes One: Magnostriction. The material will shrink because the electron orbits align. Two: Adiabatic cooling and Three: Increased resestivity. So the Ohmic resistance will rise with the addition of the magnets. Contrary to what MarkE said, any DMM With a good battery and Ohms detector will work!

The important relationship here is between the increase in Ohmic resistance and the delay in the re-polarization of the ferrite. The higher the Ohms, the greater the DLE.

I'd like to see you show a drop in resistance measured by your favorite DMM on any chunk of NiZn ferrite that you care to choose by subjecting it to a magnetic field.  If you can manage such a thing you either have a big thin sheet of material with conductive contact plates on each side and/or a really good DMM.

It would also be fun for you to demonstrate measurable magnetostriction in a ferrite of your choice MnZn or NiZn.  Making the wires buzz from magnetostriction does not count as showing the ferrite core deform.

[MarkE]

Is that a typo?  Did you mean a uA731 voltage regulator or an LM741 Op-Amp?

[synchro1]

I'd like to see you show a drop in resistance measured by your favorite DMM on any chunk of NiZn ferrite that you care to choose by subjecting it to a magnetic field.  If you can manage such a thing you either have a big thin sheet of material with conductive contact plates on each side and/or a really good DMM.

It would also be fun for you to demonstrate measurable magnetostriction in a ferrite of your choice MnZn or NiZn.  Making the wires buzz from magnetostriction does not count as showing the ferrite core deform.

@MarkE,

I would bet money you never even tried it. I never specified any particular grade of ferrite. Ferrite is a gray ceramic metal with crystaline molecular structure that has both semi-conductor and piezo-electric properties. Don't you think it would make more sense to tailor the choice of ferrite characteristics to the task rather then to some arbitrary selection you chose as an example to falsely demonstrate it's impracticality? All you do is shoot wet farts over everything.

I deeply resent you trivializing the measure of core resistivity in Ohms as a sensor for an Op Amp flux density regulator. Part numbers can switch around depending on the manufacturer as you well know! These improvements cover two parameters. A positioner screw to change the rotor gap and a flux density contoller for the core.

[MarkE]

@MarkE,

I would bet money you never even tried it. I never specified any particular grade of ferrite. Ferrite is a gray ceramic metal with crystaline molecular structure that has both semi-conductor and piezo-electric characteristics. Don't you think it would make more sense to tailor the choice of ferrite qualities to the task rather then to some arbitrary selection you chose as an example to falsely demonstrate it's impracticality? All you do is shoot wet farts over everything.

I deeply resent you trivializing the measure of core resistivity in Ohms as a sensor for an Op Amp flux density regulator. Part numbers can switch around depending on the manufacturer as you well know! This covers two parameters. A screw to change the rotor gap and a flux density contoller for the core.

Then you would bet wrong.  You deeply resent a straw man you just built?  Well then good for you.  Those straw men can be tough characters.  Are you imagining some conversation that you think you have been having?  Perhaps you would like to point out the posts where you proposed a design and it was unfairly shot down.

[synchro1]

The Op Amp "levitator" circuit could inlude the "Globe" type of efficient electromagnetic magnet augmented  coil. This would mount on the back of the magnet stack instead of the permanent magnet pivot sheer, and resemble a smaller versión of the large GAP magnet core coil. This kind of "Flux Balancing" actuator would probably result in a much finer tuning range.

Let's review the chain of events: The rotor achieves DLE at CMF and accelerates. The increased rotor frequency raises the flux density in the coil core and delays re-polarization that advances the reflected wave too far from TDC stalling the acceleration. The Ohm sensor detects a rise in resistivity and the controller coil weakens the field which retards the timeing, and acceleration resumes!