Magnet physical properties
1. Example
Here is an example of regions in inner magnet. Note that the same principles apply to outer magnet.
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| Regions for inner magnet - Example | |
| 1 | Magnet |
| 2 | Pole shoe |
| 3 | Edge |
| 4 | Bridge |
| 5 | Web |
| 6 | Yoke |
| 7 | Web |
| 8 | LOCAL coordinate system for defining the polarization of the magnet |
A coordinate system is dedicated to magnet. This is what we call the LOCAL coordinate system.
It is used to define the magnet’s polarization.
Note: By default, a GLOBAL coordinate system is defined. Its
reference point is located at the center of the rotor.
Note: For spoke magnets, the coordinate system defining polarization
must be along the symmetry axis. Otherwise the polarization will not be
consistent.
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| Definition of the local coordinate system for spoke magnets |
2. List of possible elementary regions for an inner magnet.
- Magnet, Pole shoe, Edge, Bridge, Web, Yoke is illustrated above.
- Pole core, Interpole or Hub
- Description of different ferromagnetic zones in magnetic circuit associated with magnet.
- Hole or Slit
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| 1 – Example of slit |
- Cooling hole
- Mechanical device to represent rivet for example
- Ferromagnetic wedge