ZFM Advanced Explorations Part II

[Yaro1776]

[Yaro1776]

Experiment B: N-N Rotor Neo Configuration

The second experiment in this series was a trial with a rotor N-N NeoN-N Neo95 degreesN-S to demonstrate the impact of this arrangement, if any.

[Gary Hammond]

Hi Yaro,

These are interesting experiments, but I have a couple of questions about them. .............First, what is the "repulsive dead zone"? And second, if you installed a steel shaft for the second experiment, what was the shaft material in the first experiment?

A slight nudge moved the rotor out of the repulsive dead zone and it turned towards the other coil end pole and locked onto the attractive pole. The total rotation was 95 degrees. A major difference from the previous single pole experiment.

[Yaro1776]

Hey Gary,

There is a narrow arc of rotational movement at the coil end pole where the principle magnetic force acting is radial and not tangential. In the attractive case the Neo is locked into position and will not rotate - the same applies for the repulsive case, in that the Neo remains stationary. I describe this as the dead zone and use it as a reference point. There is some very small play here due to other influences, with the major one being static bearing friction.

My error in not clarifying that the same steel shaft and Aluminum rotor were used in each experiment. Intend to post the last experiment soon.

[Yaro1776]

Experiment C: N-S Neo Configuration

The third experiment in this series was a trial with a rotor N-S configurationN-S Neo configuration the rotor turned and rested on the first attractive coil end pole. The Degree wheel was then adjusted to the Zero Degree Point. The rotor then was positioned at the coil mid-point (to eliminate rotor over spin) and next the coil polarity was reversed. With the reversal of polarity the rotor turned to the other attractive pole yielding 105 degrees of total rotation

[Gary Hammond]

Hi Yaro,

I would also be interested in seeing how a four magnet rotor would behave in this test. Both with all north out and then with alternating N,S,N,S out.

It would also be interesting to measure where the torque is the greatest in each experiment, i.e. at the coil ends or somewhere else in the arc of rotation between the coil ends.

I'm enjoying your experiments with the basic setups to better understand the magnetic fields and how they interact. GOOD WORK!!

[Yaro1776]

Gary,

Appreciate your encouragement on this experiment and will attempt to partially answer your what if questions as follows:

1) The two pole arrangements are very similar in the torque produced, at least as measured by the finger test. At 12vdc there is a smooth acceleration from the Repulsive pole towards the Attractive pole when there are two forces (push and pull) acting on the Neo rotor and it appears that the minimum is on the very near approach to the A pole, while the maximum is produced a bit away from the R pole vicinity.

2) Cannot do this type of test with a N-N-N-N arrangement at this time with the single coil - not enough Neo's on hand. This configuration would be problematic for a 90 degree coil in that as the first N Neo rotor moves from the R pole towards the A pole the second N rotor Neo approaches the R pole. Furthermore the third N Neo leaving the A pole would resist the first Neo leaving the R pole. So the rotor would probably stall. Way too many conflicting forces

3) The N-S-N-S arrangement, on the other hand, has three Neo poles working together with the coil, thereby amplifying the A and R forces. The first N Neo is being Repulsed while the second incoming S Neo is being Attracted to that pole. The third S Neo is being repelled (outgoing) from the further pole. That in a nutshell is the beauty of the ZFM concept with all the forces acting in unison The YZFM has been operated many times at only one polarity and it will produce torque and speed, albeit at a much lower value.

Torque measurement may be a bit challenging, however we can speculate that it is greatest when the Vertical force is becoming lower and the Tangential forces are greatest. Much depends on the Neo sizing, coil gap to Neo and the operating voltage - this is where the design issues become way too complex.

The point here is that a series of simple experiments can become an invaluable tool for maximizing the desired performance from any motor design.

Thank you for your kind attention!

[Yaro1776]

test by Aaron

[Yaro1776]

Functionality Test

[Aaron Murakami]

Looks like you're in!

[Yaro1776]

Hey Aaron,

Still having issues in not being able to post over a 100 words or so when in advanced mode. Preview of post yields a blank screen and then wind up not being able to to bring up EFS site at all. I will try my backup laptop to see if the same issue exists on a newer operating system. We went through a similar set of issues about a year ago...

[Yaro1776]

Aaron,

Tried another computer with Win7Pro with the same negative results. Frustrating, but then again I can post sometime in the future. I will continue my experiments irregardless of these speed bumps.

[Aaron Murakami]

Hey Aaron,

Still having issues in not being able to post over a 100 words or so when in advanced mode. Preview of post yields a blank screen and then wind up not being able to to bring up EFS site at all. I will try my backup laptop to see if the same issue exists on a newer operating system. We went through a similar set of issues about a year ago...

Can you post more than 100 words in non-advanced mode? I'm trying to find out how to increase it either way.

[Yaro1776]

Just tried a three paragraph copy and paste from the Word document I have been using to Quick Reply. Clicking the Post Reply button gives a "do you want to leave page" message. Pushing yes button yields a blank page.

[Yaro1776]

Greetings to all the wanderers of the aether,
Having concluded the first phase of the next generation ZFM, one can now go forward to the actual design phase of this project. Please bear in mind that this and the following posts of the project progression are essentially a digital form of documentation. There may be areas that are a bit unclear, but do not expect to have every detail to be fully explained – otherwise, where would the challenge and enjoyment be?

Limit of posting reached!