| Air Gap..................................... |
A low permeability gap in the
flux path of a magnetic circuit. |
Anisotropic Magnet..................
|
A magnet having a preferred direction of
magnetic orientation. |
Bipolar Magnets.......................
|
Both poles are on one side. |
Closed Circuit...........................
|
A complete circulating path for magnetic
flux around a core of ferromagnetic material. |
Flux..........................................
|
The condition existing in a medium subjected
to a magnetising force. |
Flux Density.............................
|
The magnetic flux per unit area of a section
normal to the direction of flux. Also known as magnetic
induction. |
Fluxmeter.................................
|
An instrument that measures the change of
flux linkage with a search coil. |
Fringing Fields.........................
|
Leakage flux particularly associated with
edge effects in a magnetic circuit. |
Gauss........................................
|
Lines of magnetic flux per square centimetre.
This is a measure of flux density. |
Irreversible Loss.....................
|
The partial demagnetising of a magnet caused
by external factors. |
Isotropic Magnet......................
|
A magnet material whose magnetic properties
are the same in any direction. |
Leakage Flux............................
|
That portion of the magnetic flux that is
lost through leakage in the magnetic circuit due to saturation
or air-gaps. |
Magnetic Circuit.......................
|
Is a closed path containing a magnetic flux. |
Magnetic Flux...........................
|
The total magnetic induction over a given
area. |
Magnetising Force....................
|
The magnetomotive force per unit length
at any point in a magnetic circuit. Measured in Oersteds
in the cgs system. |
Magnetite.................................
|
A magnetic ore of iron. |
North Pole................................
|
That pole of a magnet which, when freely
suspended, would point to the north magnetic pole of the
earth. |
Orientation Direction (Axis)....
|
The direction in which an anisotropic magnet
needs to be magnetised in order to achieve optimum magnetic
properties. |
Pole Pieces...............................
|
Ferromagnetic materials placed on magnetic
poles used to shape and alter the effect of lines of flux. |
South Pole...............................
|
The pole of a magnet which, when freely
suspended, would point opposite to the north magnetic
pole of the earth. See North Pole definition. |
| Weber....................................... |
The practical unit of magnetic flux.
|
