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

2.1 Hinge

Hinge motion is commonly seen when monitoring door and lid positions, such as when detecting the screen position on a laptop. A simple hands-on tool to test the hinge function manually is available using the HALL-HINGE-EVM, which features a 3D printed assembly that includes magnet and sensor adjustment and a protractor with 1 degree intervals.

Figure 2-2 Hall-Hinge-EVM

To simulate hinge motion, select "Hinge" from the top-menu.

Figure 2-3 Hinge Function Selection

The resulting prompt appears as shown in #GUID-84D91191-432B-44FD-9F23-BC080A3775DC

Figure 2-4 Hinge Function User Inputs

Magnet travel for this type of motion is described by the magnet rotating by some angular distance about the X-axis. This is normally setup by placing the sensor and magnet at some horizontal displacement from the hinge in the Y-direction. Vertical offset from the hinge may be set in the Z-direction.

Figure 2-5 Hinge Motion Using an Axial Cylinder Magnet

The angular distance is entered by the user in the field marked "Arc Length" in the Magnet Motion section. An arc length of 360 produces a complete circular rotation about the X-axis.