Demonstration of magnetic viscosity

http://gigaGauss.com A lump of ferrite is stuck to the rotor. As the ferrite approches the fixed fMagnet it becomes magnetic. How long does the magnetism last in the ferrite? Here we can see on the crude scope the reading from a hall sensor, ( a Hall sensor detects magnetic fields and produces a voltage that is fed to the sound card of a scope program. A very basic setup, but we can see Magnetic Viscosity in action.

Un pocita de ferrita esta pegada a un rotor. Cuando la ferrita pasa el imane , esta cargada y por pocos instantes ese converte en un imane. El sensor mide el campo en la ferrita. Viscocidad magnetica en accion.

Category:

Science & Technology

Tags:

• Magnetic
• Viscosity
• magnets
• datalogger
• data
• logger
• hall
• sensors
• ferrite
• overunity
• motor
• imanes
• Steorn
• Neodymium
• Neo
• Neos
• core
• transformers
• energia
• gratis
• gaussmeter

[MrBoris12345]

This is NOT viscocity. Electronic ferrites simply do not have the appropriate single domain grain size (<30nm). Rather, this is simply an AC signal from hall due to the measured magnetic field being increased by the presence of the magnetically permeability of the ferrite as it passes by; and the closer it is to the magnet, the higher the magnet-ferrite-hall coupling, so the higher the signal.

[Eltimple]

interesting , but the same test can be done static, firng a coil at one end of a ferrite rod, and timing the wave along the lenght, you will find much the same result. I belive static testing is better but not as much fun to video..

[broli123]

@Eltimple

I was looking for that exact same experiment. Have you actually performed this?

[Eltimple]

@broli123 , yes about a year ago,

[perazaroberto2]

good new thingh

[Eltimple]

LOL, seeing these effects like this hopefully makes it easy to understand. i wish my physics prof had done it this way to demonstrate bh et al.

[sacha4you]

Eltimple, congratulations! You have just re-found again the basics of the laws about time variant magnetic remanence!

This is the shocking-secret explanation, why the core-power density [W/m³] is much lower for a 50/60Hz- mains-transformer, than for a 50...100kHz transformer in the SMPS (Switched Mode Power Supply) in your computer. When you work hard enough, you will re-invent one day Maxwell's laws. Good luck!

;-))

[gilbondfac]

steorn motor

[lumen0]

You may also want to try rotating the disk with the ferrite in the opposite direction to rule out any affect of the ferrite becoming magnetic just from the close proximity to the magnet and simply directing the field into the hall sensor.

[Eltimple]

You show a lack of understanding of the content of the video, we are not saying anything will or will not work, we are demonstrating Magnetic viscosity.