Hi,
For a booth at a fair I want to build a device that can lift an object
using hall sensor(s) and coils etc. I know that those things can be
bought, but I need to have our own device, and it must be open so
everything is visible. And I want to lift larger object, like a golf
ball.
I will make electronics with PID regulation etc. I am an experienced
electronics developer, that should be no problem. And I assume that a
PID regulator would be enough.
I do not want to build the known spinning levitation, but use
electromagnets. The only way I can see to accomplish this is have a
electromagnet above the floating object.
My first question:
Does anyone know what the best form would be for the inductor? What
surface is needed for what height and mass to lift? I want it to be
large enough so I can reach a decent distance.
It would even be better if there was some position control, or 3
magnets so I could turn the flying object too.
Any suggestions or info is welcome.
And another question:
Philips had in the Evoluon in eindhoven many years ago a flying plate
that worked on eddy currents. It made a large metal plate float at 10
cm height (it used much power, several kW). Does anyone have more
information on this? Or another way to lift things from below instead
of having the magnet above the hovering object?
P.
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