Fluxgate magnetometer experiment

Chris, thanks for the links! A very good video. And I'm not sure what it is about Feynman, but he is really easy to listen to, even with complex subjects. Maybe it's that New York charisma? 😎

So this first experiment, the fluxgate magnetometer, is one of a few I plan to do, just to get myself more familiar with the dynamics of how electromagnetic waves move in the coils.

Here is Chris's original video of the experiment.

This is of course not meant to be above unity, but has several interesting effects going on that I think one could pursue in the case of breaking the unity boundary. And it's been mentioned in documentation of several of the greats before. But first, I'll give my understanding of how the fluxgate works, for those that have no idea. As always, please correct me where I'm wrong, for my benefit as well as others.

Consider the following picture. Credit to www.imperial.ac.uk, linked to the page from which I got the information and the picture. It's an easy read for understanding.

They say in the article that it's better to think about the toroidal core as two halves.

The external magnetic field, in our case it's the magnets, is pulled into the core in one direction. As the drive coil is fired up it produces a magnetic field in the core. In one half of the core it is additive to the magnets field. And in the other half is opposing, and subtractive, of the magnets field. 

As the current in the drive coil rises, the half that is additive will go into saturation first. The magnets magnetic field on that side is "gated" out of the core and creates a voltage/current in the sensing coil. As the drive current continues to rise, the other side of the core eventually saturates too, and the magnets magnetic field is "gated" out trying to create a voltage/current in the sensing coil which is in opposition to the first, so the sensing coil current slows, stops, and starts to fall.

As the current in the drive coil starts to slow the side which came into saturation second, is the first to fall out of saturation, at the same time creating a voltage/current in the sensing coil in the opposite direction. Then the side which was first to go into saturation falls out of saturation as well, creating a voltage/current that opposes the other and the current in the sensing coil slows and stops.

As the current in the drive coil crosses the 0 axis for the second half of the sine wave cycle, the process starts over for the core and sensing coil. Which actually creates an output frequency which is twice that of the input.

So, that was a mouthful. I'll show a scope shot of what I had going on, with the drive coil current starting at the 0 line, for ease of understanding. Also, I'm not sure why this is not as symmetrical as one would assume. Maybe because of the lag, or difference, in the BH curve for saturation and desaturation? But the scope shot here should follow basically what I described above. Totally not sure if I have my lines in the correct spots, but I tried to break it up into the different steps. Again, one half of the drive coil cycle (yellow trace) being on complete cycle of the sensing coil (blue and purple traces)

• Green trace, drive coil voltage.
• Yellow trace, drive coil current.
• Blue trace, sensing coil voltage.
• Purple trace, sensing coil current.

Here is a video of the effects I saw that were in the original video from Chris.

So, takeaways from the experiment.

• Big disconnection between the output and the input. Something most researchers I think are looking for? Needs further investigation. If this condition can be brought about with little to no input, then the unity boundary could be easily broken.
• Saturation is known to create harmonics, as far up as into the radio frequencies. Good substitution for the spark gap, to get those electrons moving?
• Otherwise, this has been a great brain exercise for understanding saturation, the BH curve, moving fields, and I'm sure more to come after a bit more thinking on the back porch.

So what does this have to do with the A Vector potential? Feynman said the A Vector exists with a motional magnetic field, whether there is a wire there or not. As the core goes into saturation, that is exactly what we are seeing. The pressure of the A Vector potential, brought about by the gated field of the magnet, being applied to the sensing coil. And in the latter part of my video I use the bucking/opposing coils. There is no saturation. There are two magnetic fields canceling, and the electric field doubling. Which to my understanding is two A Vector potentials, canceling in spin, "surging electric field" as Floyd Sweet and Tom Bearden would put it, which is running the sensing coil.

Anything I'm missing?

The next experiment will be Self-Assisted A Vector Potential Oscillation

However, I need to order a few things, and I have a trip to California coming up soon. I'm sure I'll be online reading, commenting, etc, but my bench time is [NULL] for a few weeks at least.

Hope others are getting in some bench time!

Marcel