SBAU419 November   2022 TMAG5170

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Simulating Magnetic Fields
  4. 2Supported Functions
    1. 2.1 Hinge
    2. 2.2 Linear Displacement
    3. 2.3 Joystick
    4. 2.4 Rotation
    5. 2.5 Static Position
  5. 3Supported Magnets
    1. 3.1 Built-In Library of Materials
    2. 3.2 Magnet Shapes
      1. 3.2.1 Bar
      2. 3.2.2 Strip
      3. 3.2.3 Diametric Cylinder
      4. 3.2.4 Axial Cylinder
      5. 3.2.5 Diametric Ring
      6. 3.2.6 Axial Ring
      7. 3.2.7 Multi-Pole Ring (Radial)
      8. 3.2.8 Multi-pole Ring (Axial)
      9. 3.2.9 Sphere
  6. 4Device Emulation
    1. 4.1 Device Types
      1. 4.1.1 Analog Linear
      2. 4.1.2 Digital Linear
      3. 4.1.3 Switch
      4. 4.1.4 Latch
  7. 5Simulation Outputs
  8. 6Additional Resources
  9. 7References

3.2.5 Diametric Ring

Figure 3-11 Diametric Ring Magnet

To create a diametric ring magnet, set the magnet shape to "Ring" and leave the number of poles at 2. The diametric ring magnet is similar to the diametric cylinder. The primary difference is that the center of the magnet is open, and the user is required to enter an inner diameter value as well. Polarization of this magnet type is in the Y-direction by default.

Figure 3-12 Diametric Ring Inputs

These magnets can be installed anywhere along the length of a rotating shaft for use in angle measurements. This is particularly helpful in cases where space is limited or access to the motor shaft is obstructed in such a way that a diametric cylinder cannot be easily installed on the end of the rotating shaft. Sensors may be placed to capture the rotating field to measure absolute angle with this magnet type as well.