SLYU064A June   2023  – December 2023 TMAG3001 , TMAG5170 , TMAG5170-Q1 , TMAG5170D-Q1 , TMAG5173-Q1 , TMAG5253 , TMAG5273

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Joystick Design
    1. 2.1 Establishing Form Factor
      1. 2.1.1 Choosing Mechanical Implementation
      2. 2.1.2 Choosing Magnetic Implementation
    2. 2.2 Magnet Sensor Placement
    3. 2.3 Design Calculations
    4. 2.4 Post Processing
    5. 2.5 Prototyping and Bench Testing
    6. 2.6 Error Sources
      1. 2.6.1 Mechanical Hysteresis
      2. 2.6.2 Nearby Material Influence
      3. 2.6.3 Fulcrum Slippage
      4. 2.6.4 Offset
  6. 3Lever Design
    1. 3.1 Establishing a Form Factor
      1. 3.1.1 Choosing Mechanical Implementation
    2. 3.2 Magnet Sensor Placement
    3. 3.3 Design Calculations
    4. 3.4 Prototyping and Bench Testing
    5. 3.5 Error Sources
  7. 4Summary
  8. 5References
  9. 6Revision History

2.1.1 Choosing Mechanical Implementation

Depending on the equipment purpose, the resolution, the features, cost, ease of manufacturing, and the desired user experience, different mechanical methods might be explored. Below are just a few options of what might be considered. Methods 1 and 2 are variations of the ball and socket joint, illustrating that the ball can be in the stationary or mobile body of the joint, depending on whichever seems more suitable for design. Method 3 illustrates an example of a joystick with 2 axles, allowing 2 degrees of motion through 1 stationary body and two mobile bodies.

GUID-20230216-SS0I-1FCG-HJQC-6DDSNNS81PTZ-low.svg Figure 2-1 Mechanical Implementations