Magnet Terminologies

Magnet Terminology – Glossary

-Understanding Different Magnet Terminologies from Dailymag.

Air Gap – it refers to the external distance from one pole to another through a non-magnetic material.

Anisotropic – is comprised of a variety of properties in a wide range of directions. The most common anisotropic magnet is neodymium.

B/H Curve – It is the magnetic field (H) value plotting result that is applied against flux density resultant (B). The achieved curve determines the magnetic material qualities.

Maximum Energy Product BHmax – It is the point in the B/H curve that possessed the most strength. It is commonly expressed in MegaGaussOesterds (MGOe).

Brmax (Residual Induction) – It is commonly known as residual flux density. After the magnetizing field, the remained magnetic induction in a saturated material is removed. At this point, the hysteresis loop crosses the B axis at the magnetizing force of 0. It commonly occurs at the zero air gap.

C.G.S. – It is short for centimeter, gram, and second in the measurement system.

Coercive Force (Hc) – It refers to the demagnetizing force that is important in reducing the observed induction after the magnet is brought to saturation.  It is commonly measured in Oersteds.

Curie Temperature Tmax – A magnet losses all its magnetic properties at this temperature.

Demagnetization Force – It is a magnetizing force in which the direction is opposite to the force used to magnetize. The demagnetizing forces include temperature and vibration.

Demagnetization Curve – This refers to the hysteresis loop’s quadrant that describes the magnetic characteristics behavior when actually used. It is also known as the B-H curve.

Dimensions – It is the magnet’s physical size including its coating or plating.

Dimensional Tolerance – It is a permissible range of allowance of the finished magnet’s nominal dimensions.

Dipole Moment (M) – It is a quantity that describes the external magnetic field experience.

Electromagnet – These magnets are consists of iron core and solenoid. It only has a magnetic field during the current flow in a solenoid.

Ferromagnetic Material – these materials are the source or conductor of magnetic flux. Ferromagnetic materials are composed of cobalt, nickel, or iron.

Gauss – It refers to the magnetic Induction (B) unit.

Gauss Meter – It is an instrument that is commonly used for measuring the magnetic induction (B) instantaneous value. Is also referred to as a DC magnetometer.

Gilbert – In the C.G.S system, it refers to the magnetomotive force (F).

Hysteresis Loop – It is a plot of the B/H curve in which the material is successively magnetized in the opposite direction, demagnetized, and magnetized to saturation. The loop’s size and shape are necessary for soft and hard materials.

Update cookies preferences
Scroll to Top