Magnetic Brakes

This clip illustrates the application of the theory of the Hall Effect as a magnetic braking device.

Category:

Education

Tags:

• Kiledjian
• Chapter 31
• Hall Effect
• Faraday's Law
• electromagnetism
• magnetic braking
• physics

[honeybunchickens]

Why don't they put this design on cars yet? Its a brilliant concept and you will never have to change brake pads

[tanmaykothari1]

it was ok

[sondeleb]

Very nice demonstration

[4141ca]

this is used in f1 for braking and charging the kerbs

[MarineFocus]

@xXCrimsonVirtueXx What you're saying is true, but what I meant was since the slabs that "rub against the inside of the wheel" is working efficiently enough already, there's little reason to use magnetic brakes (I'd imagine it'd also be high maintenance to keep it up to par?). And continuing from above, when I mentioned the ground I meant the car stops BECAUSE of the non-moving tires (assuming the wheels lock from the brakes) that rubs against the ground.

[xXCrimsonVirtueXx]

@MarineFocus Most cars use brakes, which are just metal slabs with lots of friction, that rub against the inside of the wheel, causing friction, causing the wheel to stop. It has nothing to do with the ground. When magnets interfere with copper or aluminum it has a slowing reaction which could be applied to cars to slow them down.

[MarineFocus]

cars brakes don't even work that way -.- wth is he saying

the brakes itself stops the tires from turning which creates friction with the ground and thats how the car slows down...

I don't see how you can apply that to cars? unless you meant replacing the rubber braking parts with the magnetic brakes... okay, more efficient in not wasting rubber but thats not going to help cars slow down faster unless the GROUND magically supports magnetic brakes.. which is like wtf

other than that cool vid

[alleyesonhimband]

im really intrested in how that is possible, how come the magnet doesnt attach to the pendulum? or does it have to be magnetised?

[tomT024]

some roller-coasters use this...

[freebiker75]

@SZDarkhack

Ok, but you have to admit that if you compare the magnetique fiel brake to a conventionnel brake systeme there's a huge difference in the temperature.

For an example take an electric motor: the most of the heat is produce by the bearing, wich is friction. I bet with a magnetic brake you can put your hand on the systeme after braking for a mile long hill, but on a conventionnel disc brake and pad systeme you would end up at the hospital with severe burn lol.