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

Diametric Cylinder

Figure 3-8 Diametric Cylinder Magnet

Cylindrical magnets are also commonly available with a variety of polarization options. When "Diametric Cylinder" is selected for the magnet shape, the resulting magnet will by definition be a dipole magnet. The result is that pole count is not a needed input. The default polarization direction for this magnet type is in the Y-direction.

Figure 3-9 Diametric Cylinder Inputs

This magnet type is commonly used to track rotational angle. Used with either a single two-dimensional latch sensor or with two one-dimensional latch sensors, four distinct positions per revolution may be observed. However, if used with a linear device it is possible to capture absolute angle using electrical outputs that are 90° out of phase. This may be done with two one dimensional devices spaced about the magnet or using a single 3D sensor capable of capturing field components which are inherently 90° phase separated.