Magnetic Levitation using Phase Lead Feedback Control

[redmonkblueminer]

This is quite impressive! How does it work?

[kimdavi]

wtf?

[kimdavi]

i don't get it

[XxbombradierxX]

umm... that would be a string or hair, nice try.

[NagelFar88]

umm... that would be you not really dont understand the concept of this, nice try

[conoba]

I see what you did there. Long ago I tried something similar with a plain PID control, slapped together in an afternoon.

It was unstable like a hippo that is juggling pianos while riding a unicycle.

I am impressed how well you stabilised that loop. Good job!

[Matrix29bear]

I can buy a toy that levitates a tiny globe or a pen or a STAR TREK toy for about $20 that does this too. Big whoop.

[conoba]

Try BUILDING one from scratch. Bet you couldn't do it if you studied the entire subject for a year.

[Dad1006]

Unfortunately, the washer is hanging from a string. Notice how the washer rotates back and forth instead of one continuous direction.

[elwebre]

to change direction that fast it would need to be made of rubber dad

[nagatzul]

Now that's some funky physics for you right there.

Care to elaborate on said experiment?

[MooseHole]

I'm pretty sure the things on the sides are light detector/emitters. If the magnetic field is too weak, the washer drops, and the light detector can see the emitter, because the washer moved out of the way.  When this happens, it sends a signal to the magnetic power. When the magnet power increases, the washer goes back up, the light detector can't see the light anymore, and it sends a signal to decrease the magnet power.

[faiz007]

do all the magnets need to have similar magnetic force for this to work properly?

[Auburnate]

This doesn't use plain magnets, only one electro-maget that I control when it turns

[BLUYES422]

wow that is awsome