Lenzless rotation using radially (update: axially works too) magnetized PM.

[broli]

BEP yes that's the whole point. The field shouldn't change. If there's moving charge in a magnetic field there will be a force on this charge but there will also be a reaction force (newtons third law) on w/e causes the field in this case the permanent magnets. Now let's hold the wires tightly and not let them move even though there's a force it's canceled since we don't allow it to move. But that doesn't mean there's no reaction force on the magnets. Since we attached the magnet on some bearing then, for example, this reaction force will cause it to turn. Now as it turns, just like you said, it will cause NO changing magnetic field  since it's turning on the magnetic axis. But this is FINE since it means there's nothing to counter it like an induced EMF. So it will keep spinning faster and faster. All the while the moving charge (current) is giving it a reaction force.

To be honest I'm getting a bit depressed with this setup. I have very limited resources which make experimenting kind of annoying. Today I went on to buy a car battery charger from some second hand place, but when I got home I found out it didn't work. It might have had some sort of circuit that checks for load and stuff in order to switch it on. So that got me nowhere. The ring magnets I'm using are really small so I doubt I will get enough torque to overcome all other losses like the very bad made coil of wire around the magnet. I might take a picture of the ridiculous setup I made.

I wanted others to get involved who do have the equipment but looks like no one's interested. I was also thinking about going to a local university and asking them to let me use their labs or something.

[TechStuf]

Broli, don't get depressed.  Tell you what,  grab bike wheel, mount it horizontally on a pedestal.  Stick a few magnets equidistant around the rim all same pole face up.  Spin it up to a consistent and repeatable RPM level and measure the time it takes to come to a complete stop.  Now drop a small neo disc magnet into a small plastic canister wrapped in maget wire hooked up to an LED.  Spin the wheel up to the exact same RPM level, start the stopwatch, and immediately place the canister above the rim at such a distance as to initiate tumbling of the magnet inside the canister but not so close as to slow the wheel.  Once you find the right configuration for your particular setup, and after timing a few spin cycles to dead stop, with and without generating electricity, you should notice something quite revealing.


TS

[broli]

TS thanks for your advice. I already did the experiment to check for voltage. I attached one magnet to a drill and held the other with the wire around it stationary in front of it. I couldn't measure any voltage. The problem lies in the second phase. Making it run using the Lorentz force. The formula goes F = B*I*L. All parameters are so small in my current setup that's there's barely even a micro torque. I'm using a small wheel as rotor. I think I'm going to think of a better design that's simpler to build and is more convincing. I just wanted a quick proof of concept but I guess I have to plan it a bit better.

[TechStuf]

You are welcome.


Try the tumbling magnet trick.....


TS

[wizkycho]

hi all !

http://www.truveo.com/homopolar-earth-pole-motor/id/2497235433

really accelerates and runs fast with just short touch from batery

I allso found page and it is in industrial production
http://www.bodine-electric.com/etorq/

wonder if it's/can be OU

Wiz