hi
does anyone know where i can get some material that reflects a magnetic feild
need it for an experiement
thanks
frosty
Hello frosty
Is the magnetic field constant or does it reverse polarity?
Diamagnitism is a "resistance" to magnetic field penetration but not a reflection. Eddy currents in aluminum from changing magnetic fields is also a "resistance" but not a reflection.
The Meissner effect acts as a barrier to magnetic fields but is still not a reflection.
You can also make a shield of sorts by using iron laminate structures to channel magnetic fields around an object.
Is the magnetic field constant or does it reverse polarity?
Diamagnitism is a "resistance" to magnetic field penetration but not a reflection. Eddy currents in aluminum from changing magnetic fields is also a "resistance" but not a reflection.
The Meissner effect acts as a barrier to magnetic fields but is still not a reflection.
You can also make a shield of sorts by using iron laminate structures to channel magnetic fields around an object.
the field is constant.
and has to reflect the field.
i know its a bit of an ask, might not be any materials in the public domain that do such a thing.
i'm pritty sure i've read somewhere that there is such a material
QUOTE (frosty+Jan 23 2008, 04:40 AM)
the field is constant.
and has to reflect the field.
i know its a bit of an ask, might not be any materials in the public domain that do such a thing.
i'm pritty sure i've read somewhere that there is such a material
What's your application? I can help you develop that idea of yours.
Take a look at my webpage
http://vulvox.tripod.com
We recently had a materials science breakthrough; I discovered a carbon nanotube material that sticks to soft rubber and it sticks to wet rubber and to other materials with the same consistency; human flesh and it will have myriad of medical applications. It might be the Velcro of the new millennium.
Neil Farbstein
President
Vulvox Nanobiotechnology Corporation
protn7@att.net
and has to reflect the field.
i know its a bit of an ask, might not be any materials in the public domain that do such a thing.
i'm pritty sure i've read somewhere that there is such a material
What's your application? I can help you develop that idea of yours.
Take a look at my webpage
http://vulvox.tripod.com
We recently had a materials science breakthrough; I discovered a carbon nanotube material that sticks to soft rubber and it sticks to wet rubber and to other materials with the same consistency; human flesh and it will have myriad of medical applications. It might be the Velcro of the new millennium.
Neil Farbstein
President
Vulvox Nanobiotechnology Corporation
protn7@att.net
There are several options that you have for magnetics.
One option that you have, depending on the application, is simply to not have it affect what you are working with. For example, if you are using microchips in an environment where magnetics would disrupt the operation of the chip, shielding is the best method. Any metal mesh covering the chip will absorb the electro-magnetics and allow for normal operations.
A method that I have not heard used before, and it is far more complicated, you could use the properties of constructive interference, like used in a phased array radar in order to negate the magnatism where you do not want it, but enhance it where you would like it. The Aegis class crusier in the navy has the best example of the phased array radar in the US Navy.
dwaynefries@columbus.rr.com
One option that you have, depending on the application, is simply to not have it affect what you are working with. For example, if you are using microchips in an environment where magnetics would disrupt the operation of the chip, shielding is the best method. Any metal mesh covering the chip will absorb the electro-magnetics and allow for normal operations.
A method that I have not heard used before, and it is far more complicated, you could use the properties of constructive interference, like used in a phased array radar in order to negate the magnatism where you do not want it, but enhance it where you would like it. The Aegis class crusier in the navy has the best example of the phased array radar in the US Navy.
dwaynefries@columbus.rr.com
look up superconductors
Yes, superconductors and the Meissner effect is what you need.
The most common (older) superconductors completely repel magnetic fields; You may call it "reflect", but keep in mind that a static magnetic field isn't a wave or light etc.
On static fields, only superconductors have this behaviour.
The most common (older) superconductors completely repel magnetic fields; You may call it "reflect", but keep in mind that a static magnetic field isn't a wave or light etc.
On static fields, only superconductors have this behaviour.
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