Testing Permanent Magnets

Writen By: Magdev Magdev Posted on Mar 07 ,2017
Testing Permanent Magnets

At MagDev Ltd. we have a wide range of testing and magnetising equipment designed to give the customer the exact product they have ordered. Below you will find the equipment we use as well as what that equipment does.

At MagDev Ltd. we have a wide range of testing and magnetising equipment designed to give the customer the exact product they have ordered. Below you will find the equipment we use as well as what that equipment does.

Permeameter

This is a piece of equipment which plots the second quadrant de-magnetisation curve for a sample slug of magnetic material. From the plot the Remanence, Normal Coercivity, Intrinsic Coercivity and Energy Product of the material can be determined defining the grade of magnetic material being tested.

Helmholtz Coils

A Helmholtz coil is a piece of equipment in which a region of nearly uniform magnetic field is disturbed by the flux lines of the tested magnet. The amount of disturbance can be measured and, in conjunction with a multimeter, a comparative fluxline figure for a magnet can be obtained.  This can then be used to ensure samples are fully magnetised or that their magnetic material is consistent.

Gaussmeter

A Gauss meter uses a Hall effect chip to give a calibrated magnetic flux density measure in Gauss or Tesla usually at set points on an individual magnet or magnet assembly. It can be used to ensure the magnets will perform as they were designed to.  

Capacitor Discharge Magnetiser

This piece of equipment stores large amounts of energy so that high currents can be passed through magnetising coils in a fraction of a second, creating the high magnetic fields required to magnetise all permanent magnet materials.

To see what our testing and magnetising equipment looks like, please watch our video:

For price, availability and advice on what parts we have available, please check out our website www.magdev.co.uk or you can contact us at 01793 467 531. Alternatively you can email us at: alex.tremlett@magdev.co.uk.