The distance between the north and south poles of a magnetic circuit. In conducting pull tests this is the distance between the working surface of the magnet and the testing apparatus.

(oriented) A material that has a preferred direction of magnetic orientation which produces superior magnetic characteristics through a particular axis.

The intensity of a magnetic field required to reduce to zero the residual magnetism of a substance.

The temperature that a magnetic substance loses its magnetic properties.

A magnetized force applied in a direction that reduces the field in a magnetized material.

Another term for the magnetic field.

The unit of magnetic induction or magnetic flux density used to measure magnetic field strength (lines of magnetic flux per square centimeter).

An instrument used to measure the intensity of a magnetic field.

Indicates the change in magnetic strength between points measured at different distances perpendicular to the magnetic field.

Measurement of magnetic material's inherent ability to resist self demagnetization.

(non-oriented) A material with no preferred direction of orientation resulting in the same magnetic characteristics through any axis.

A material that has the property, either natural or induced, of attracting iron or steel.

The space around a magnet in which the magnetic force can be detected.

The total magnetic induction across or through a specified area.

The production of magnetic properties in a magnetizable substance when placed in a magnetic field.

A series of invisible lines passing from one pole to another of a magnet, which taken together form the magnetic field.

Determines the magnetic polarity and position of one magnet pole to the other.

The maximum amount of magnetic energy that can be absorbed by a magnetic substance.

The point on the BH curve where the product of B and H is a maximum and the required volume of magnet material required to project a given energy into its surroundings is a minimum. Measured in MGOe.

The maximum temperature a magnet can withstand without significant long range instability or structural changes.

Mega Gauss Oersted.

The pole of a magnet that when freely suspended would point to the north magnetic pole of the earth.

The unit of magnetic intensity in the cgs (centimeter-gram-second) system that describes magnetic force.

Steel plates attached to the north and south poles of a magnet which direct the lines of flux and can control the gradient of the magnetic field.

A test of holding value or breakaway force and reach out, usually conducted with a flat ferrous plate or ferrous sphere and a spring scale.

The distance in which a magnetic field will extend from the magnet source.

Small amounts of magnetism that remain in a material after being exposed to magnetic force.