HTS High Technology Solutions

Effective induction

New type of the permanent magnet

Introduced in previous topic new type of the permanent magnet has poles denoted on the picture below:

 

The properties of such magnet are unusual, because if we place it inside a coil with direct current (DC) flowing through, the coil will be pushed outside.

  

In presented magnetic circuit we observe strong interaction between magnetic field created by coil in a shape of solenoid and special oriented frozen domains in permanent magnet.

 

Effective induction

 For presented magnetic circuit:

, we can count experimentally force of interaction F between coil and its magnetic core (lack of an air gap connected serially).

Then using symmetry of the experiment we can calculate effective induction B of the permanent magnet that is equal to:

(4)

 

DIFFERENT approach

For the same magnetic circuit:

 

, we can check induction B of the permanent magnet in area of coil by using measuring instrument. Then use equation:

(5)

, to obtain acting on a coil force.

Incorrect! Such approach solved other magnetic circuit in which instead of permanent magnet we have soft ferromagnetic with connected to him two permanent magnets:

 

Interaction in such magnetic circuit is low due to flexible orientation of domains in the soft ferromagnetic that are changing when DC is flowing throw the coil.

To be more precise, interaction in this circuit could also be big but only when the distance between permanent magnets is small or if we introduce some necessary modifications.

After such modifications we will obtain other topology of interacting elements. Read more.

Attention! Please note, that new type of permanent magnets are not available in existing software designed for calculation of magnetic circuits.