I'm reading the instructables and I am confused. Is the charge being stored in the plastic and the aluminum can is just used to attract the charge? I've seen other versions of an electrostatic motor that use the aluminum plates to hold the charge.
@brazilero2008 - I don't want to get too excited, but, if I understand this correctly, this turbine runs on electrostatic energy? IE, the cost to run it would be nill with the right kind of electrostatic generator is that correct? So, essentially, this is a piece of hardware which, if modified, (i.e., adding a PMA), could create real, DC current? Is that correct?
i would like to see what whould happen if you decreased atmospheric pressure and increased the voltage. you would think that it wouldn't make a difference but still be interesting to find out!!!
12kv of AC on the outer corona knife plates produce strong fluctuating magnetic fields. Those magnetic fields induce eddy currents inside the inner aluminum tube/rotor.
The induced eddy currents produce their own magnetic fields as back emf. The back emf is slightly out of phase with the rise and fall of the magnetic fields on the corona plates, thus causing the rotating torque.
In a way, its like a capacitor where one of the plates is allowed to move.
12kv of AC on the outer corona knife plates produce strong fluctuating magnetic fields. Those magnetic fields induce eddy currents inside the inner aluminum tube/rotor.
The induced eddy currents produce their own magnetic fields as back emf. The back emf is slightly out of phase with the rise and fall of the magnetic fields on the corona plates, thus causing the rotating torque.
In a way, its like a capacitor where one of the plates is allowed to move.
@Brightforge - Then why does it say its connected to a power supply? He says right on the Instructables website that to power it that any 6kv power supply would turn it, therefore it is not generating. If it was generating then in the video it would be defying Physics, because it just starts turning and generates power? You have to have an input to have an output. Like I believe you could turn this with an electric motor and it would output power, but he is using it as a motor, not a generator.
my apologies, I didn't read it properly and thought this was working in the same principle as a 'free energy magnet motor', some of which reguire a spin to start them.
A plastic tube turns inside another cylinder of charge-spraying, knife-edge blades. Electrostatic forces between charged tube and the blades impart momentum causing the tube to spin at high speed.
I'm reading the instructables and I am confused. Is the charge being stored in the plastic and the aluminum can is just used to attract the charge? I've seen other versions of an electrostatic motor that use the aluminum plates to hold the charge.
ZNahum81208 1 month ago
Which forum are you sharing this?
FaustoHeikkinen 1 month ago
A Whimshurst generator would be a more reliable source of DC than attempting to run this motor as a generator.
DesktopDemos 2 months ago
@brazilero2008 - I don't want to get too excited, but, if I understand this correctly, this turbine runs on electrostatic energy? IE, the cost to run it would be nill with the right kind of electrostatic generator is that correct? So, essentially, this is a piece of hardware which, if modified, (i.e., adding a PMA), could create real, DC current? Is that correct?
ozcabal 3 months ago
Some ionized gas is needed to transfer charges from the knife-edge blades to the plastic rotor. The motor may not work in a vacuum.
DesktopDemos 3 months ago
i would like to see what whould happen if you decreased atmospheric pressure and increased the voltage. you would think that it wouldn't make a difference but still be interesting to find out!!!
tim0090 3 months ago
essential you made a wind powered servo
Si3z3 7 months ago
Nice corona motor. I had a couple of questions about the power needed to run one.
1.What is the lowest DC voltage that will run the motor?
2. I was curious what amperage was needed as well. Will 1 or 2 nanoamps run the motor?
kafr8413 11 months ago
12kv of AC on the outer corona knife plates produce strong fluctuating magnetic fields. Those magnetic fields induce eddy currents inside the inner aluminum tube/rotor.
The induced eddy currents produce their own magnetic fields as back emf. The back emf is slightly out of phase with the rise and fall of the magnetic fields on the corona plates, thus causing the rotating torque.
In a way, its like a capacitor where one of the plates is allowed to move.
Now try it with DC. :-)
Peopleunit 1 year ago
12kv of AC on the outer corona knife plates produce strong fluctuating magnetic fields. Those magnetic fields induce eddy currents inside the inner aluminum tube/rotor.
The induced eddy currents produce their own magnetic fields as back emf. The back emf is slightly out of phase with the rise and fall of the magnetic fields on the corona plates, thus causing the rotating torque.
In a way, its like a capacitor where one of the plates is allowed to move.
Peopleunit 1 year ago
Comment removed
spinafire 1 year ago
@spinafire - You missed the point, they are adding 12 kv to it.
doomsd46 1 year ago
@doomsd46 Ah, thanks.
spinafire 1 year ago
@doomsd46
no it's generating 12 KV at 1 milliamp , that's the whole point of these motors! it's a generator!
Brightforge 1 year ago
@Brightforge - Then why does it say its connected to a power supply? He says right on the Instructables website that to power it that any 6kv power supply would turn it, therefore it is not generating. If it was generating then in the video it would be defying Physics, because it just starts turning and generates power? You have to have an input to have an output. Like I believe you could turn this with an electric motor and it would output power, but he is using it as a motor, not a generator.
doomsd46 1 year ago
@doomsd46
my apologies, I didn't read it properly and thought this was working in the same principle as a 'free energy magnet motor', some of which reguire a spin to start them.
Brightforge 1 year ago
@spinafire Sorry, comment deleted by mistake. The rotor spins just from the 12 kV at 1 mA input. Nothing else was done to increase speed.
brazilero2008 1 year ago
@brazilero2008 Oh my bad, I deleted the comment, not you. Cool motor, great job on the build and instructions
spinafire 1 year ago
A plastic tube turns inside another cylinder of charge-spraying, knife-edge blades. Electrostatic forces between charged tube and the blades impart momentum causing the tube to spin at high speed.
brazilero2008 1 year ago
@brazilero2008 now what whould i need to make one mr smarty pants
Si3z3 4 months ago
how does this motor work please explain
sweeetroses 2 years ago