SBAU390A September   2021  – April 2024 TMAG5170 , TMAG5170-Q1 , TMAG5173-Q1 , TMAG5273

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Assembly Guide
  6. 3Revision History

1 Introduction

This SLIDEBY-MAG-ACC attachment uses an N42 grade cylindrical magnet as a magnetic field source to demonstrate the ability of magnetic sensors to track linear motion of a nearby magnet. The magnet is glued into the slider object, which then can pass freely down the length of the slider track. Slider options for both a vertically aligned or horizontally aligned magnet are included in the EVM kit. More details about this function are described in Tracking Slide-By Displacement with Linear Hall-Effect Sensors.

Examples of expected magnetic field data captured using the TMAG5170UEVM are shown in Figure 1-1 and Figure 1-2.

TMAG5170 Slide-by With Vertical Magnet Alignment Figure 1-1 Slide-by With Vertical Magnet Alignment
TMAG5170 Slide-by With Horizontal Magnet Alignment Figure 1-2 Slide-by With Horizontal Magnet Alignment

Nylon components were selected as these components are non-magnetic and do not interfere with the magnetic field and bond well when glued.

TMAG5170 TMAG5170 Slide-By Attachment Figure 1-3 TMAG5170 Slide-By Attachment

This function can be further explored using the slide-by reference design in the TI Magnetic Sense Simulator tool (TIMSS) available at https://webench.ti.com/timss/.

TMAG5170 TIMSS Slide-by Reference Design Figure 1-4 TIMSS Slide-by Reference Design