Inverted Ferro Fluid Quadrupole

Using a lens with a thin layer of sandwiched ferro fluid to map a magnetic field via optic affects of the field on the magnetic fluid. Blue LED's of the apparatus are spaced at 9 degrees, facing inward directed at the edge of the lens. Two spherical magnets are rotated by single axis robots at different speeds on other side of glass. The poles are the moving cone dark sections; and the geodesic contour lines are from perpendicular led sources bending in the magnetic fields of the magnet. The two moving magnets produces an quadrupole pattern.




All Rights Reserved, 09/04/07 M. Snyder

Category:

Howto & Style

Tags:

• ferro
• fluid
• magnetic
• field

[sailingsolar]

Ferrofluid in itself is not magnetic. I believe it consists of very tiny iron particles, possibly nano, in a specific oil. I imagine , as you described, it would behave like iron shaped like the container and just be ttracted to the magnet as a whole. SS

[LordTeaOfBiscuits]

thats a whole lotta nothin.

[AlienJon]

Go to Wikipedia and look up "ferrofluid" and "superparamagnetic" (also "paramagnetic" and "ferromagnetic"). The info there suggests that ferrofluids are superparamagnetic. They don't behave like a normal magnet (ferromagnet), maintaining their own magnetic field. So no North/South on their own. They only align in the presence of an external magnetic field.

[uncannystuff]

Dipole magnets form due to the influence of an existing external magnetic field. You should look into the magnetizing process to learn more about how it is achieved. It's very interesting, and slightly complicated if only because of how unfamiliar we are with it. Basically, if you subjected it to a very strong dipole field, it would possibly "remember" the shape of that field. After you remove it from the influence of the strong field, it would likely "forget" that orientation...

[Usernamedshah]

No it wont because one end isn't heavier than another to point north or south it wouldn't help in any way as a compass or showing the north and south poles because both sides are the same.

[JoshMSartin]

wow your smart lol

[rguerzo]

Question! If you completely fill an air-tight cylindrical container with the magnetic fluid, will it react like a normal solid magnet having North and South Poles? How can we achieve it? I want to know please, Thanks.

[therealspacejunkie]

This needs music! It is cool though.

[WaterBoyNinja077]

wtf?