Angular Displacement

This lab explores angular displacement measurements using a potentiometer and an incremental encoder. Students will calibrate both sensors for accurately measuring angular displacements, and will examine decoding algorithms for encoders.
by Quanser Inc.
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This is lab 1 of 9 in the course, Fundamentals of Mechatronic Sensors.


After completing this lab, students will be able to:
  1. Understand the voltage dividing properties of a potentiometer. 
  2. Calibrate the output of a potentiometer in terms of angular displacement
  3. Determine an encoder's pulses-per-revolution
  4. Examine non-quadrature, X2, and X4 decoding
  5. Calibrate the output of an encoder in terms of angular displacement
  6. Observe the effect of low sampling on the accuracy of measured data


  • Physics I or equivalent
  • Calculus I or equivalent
  • Basic LabVIEW Proficiency


Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design.


LabVIEW is systems engineering software for applications that require test, measurement, and control with rapid access to hardware and data insights.

Quanser Mechatronic Sensors Board for NI ELVIS III

The Quanser Mechatronic Sensors Application Board introduces students to different sensors and highlights their advantages and limitations in a mechatronic design context.

Required Software

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  • NI ELVIS III Software Bundle (2018 or later)
    • LabVIEW (Requires license)
    • LabVIEW Real-Time Module (Requires license)
    • NI ELVIS III Toolkit

Required Hardware

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