Oscillating sine wave LC tank magnet motor.

[synchro1]

What's going on here in this Hob Nire video? "Harmonic Resonance":


https://www.youtube.com/watch?v=dyyqWCdJr64

[MarkE]

The same thing is going on as has been used in RF equipment for many decades:  A waveform with lots of harmonics is used to stimulate a resonant tank that has been tuned to one of the harmonics.

[synchro1]

@MarkE,


Thank you. It dosen't appear as though Hob's powering his Bedini with the oscillation.


The precision ceramic bearing in the top photo is 1/8" ID and 1/4 OD. This bearing slips over the 1/8" brass axle in the photo below, and the 1/4" ID magnet tube slides over the bearing. This "thick walled" PVC coupling allows for safe shatter proof spinning at Mach level RPM. The axle is stationary!


This thick PVC "Coupling" safety shield is the best protection against magnet shattering I've seen devised, and absolutely essential for high speed RPM. Done this way, it's a very exciting kind of of fun and completely safe. That's all it takes to spin up to LC harmonic range safely! The precision ceramic bearing costs are the only prohibitive aspect of this kind of platform at around $75. This setup was designed by me especially for safety! It's possible to cap both ends of the coupling, and cut a small slit across one side to laser tach through. Starting can be accomplished by magnet swipe from outside.


This design allows us to evacuate the housing with a plexiglass tach window in place if we choose. I inserted a plastic sleeve through the tube magnet in the bottom photo that extends from both sides, to help visualize the size of the bearings.

[synchro1]

Here's a better picture of the bearings, and a link to the manufacturer:

http://www.bocabearings.com/bearing-types/radial-full-ceramic-bearings

[synchro1]

I viewed the "Tuning Bifilar Tank" video by the "Old Scientist", and he concluded that the bifilar tank needs capacitive resonance.  The Reed Switch capacitance of .2 pico farads must have matched the self capacitance of the tiny thread spool air core solenoid bifilar in my prototype. I really need to test the coil, but the math holds up.


Take a good look at this "Resonance of a Bifilar Coil" video if you haven't already seen it: "While in resonance we are able to capture the reactive energy into the inductance of the ferrite, lighting the led without affecting amperage".


https://www.youtube.com/watch?v=qtI1CPBSm-o


We can capture reactive energy from the oscillating sine wave in the "Bifilar Coil" to power a "Magnet Spinner" in resonance without affecting amperage too. A tiny axle and bearing disk spinner mounted inside the 100 hertz resonating  bifilar coil core, spun up to 6000 R.P.M. let's say by compressed air , should start to spin with the same reactive power that lights the LED.