American-magnetics MAxes Multi-Axis Magnet systems for Vector Fields Manuel d'utilisateur télécharger pdf

Multi-Axis Magnet systems for Vector Fields (MAxes

)

American Magnetics, Inc. Multi-Axis (MAxes

) systems

allow the user to easily program an infinite number of high

magnetic field vectors. Our combination of user friendly

electronics, reliable cryogenic vessels, and robust multi-

axis superconducting magnets combine to make our

MAxes

systems an excellent choice for any application

where the outcome is dependent on precise magnetic field

vector orientation. Transport studies on anisotropic

materials at high magnetic fields & low temperatures have

revealed many exciting properties. Even though anisotropic

magneto resistance is a century old phenomena,

advancements in nanotechnology has created increased

importance to attain precision angular control, while

positioning samples in magnetic field. There has been

significant progress in technologies that allow sample manipulation at atomic level, however at sub Kelvin

temperatures, there is limited thermal budget and hence it’s preferable to rotate the magnetic field than

rotating the sample. Additional constraints come into play when systems are cooled using closed cycle

coolers as thermal budget is further restricted. Some of these requirements have pushed advancements in

areas of Multi-axis magnets, as using these it is possible to align samples in magnetic field to an accuracy

of better than 0.01 degrees.

A typical MAxes

magnet is comprised of two or three independently controlled coil sets. A solenoid

coil produces the highest field along one axis. One or two sets of split coils produce fields along the

other 2 axes. By correctly energizing the coils with programmed coil constant a combined vector field

can be produced in a given direction of a known magnitude. This allows users to electronically

manipulate the field relative to the sample without the use of complex sample rotation equipment or

physically rotating the magnet position. Coil configurations could be with the split coils surrounding the

solenoid or the split coils nested inside the bore of a large solenoid. Typical specifications include high

field up to 9 Tesla (T) for the principal axis, having 2.0/3.0 inch vertical clear bore and 1T or 2T rotating

vector using any combination of x, y and z-axis magnets. Users needing higher vector field typically opt

for 2-axis systems.

The following table gives a snap shot sample of the capabilities of our MAxes

systems.

Bore size MX-2 (YZ) 2D Vector field MX-3 (XYZ) 3D Vector field

2.0"

4.5T/9T 4.5T 1T/1T/12T 1T

2T/2T/9T 2T

2.5"

5T/7T 5T 1.5T/1.5T/9T 1.5T

3.0"

5T/6T 5T 1T/1T/9T 1T

1 2 3 4

Résumé du contenu

Page 1

Multi-Axis Magnet systems for Vector Fields (MAxesTM) American Magnetics, Inc. Multi-Axis (MAxesTM) systems allow the user to easily program a

Page 2

Forces in such magnets can be extremely high due to the interaction between each coil when they are energized simultaneously. Care mus

Page 3

A typical MAxesTM-2 VTI based system has the following features: • 2-axis magnetic field vector magnet with vertical access. • Low

Page 4

Typical VTI based liquid helium cooled MX-3 systems have specifications similar to the ones listed for two axis geometries. There are numer

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American-magnetics MAxes Multi-Axis Magnet systems for Vector Fields Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement American-magnetics MAxes Multi-Axis Magnet systems for Vector Fields. American Magnetics MAxes Multi-Axis Magnet systems for Vector Fields User Manual Manuel d'utilisatio

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