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Self-Calibratable Absolute Modular Rotary Encoder: Development and Experimental Research.

Donatas Gurauskis1, Dragan Marinkovic2,3, Dalius Mažeika1

  • 1Department of Information Systems, Vilnius Gediminas Technical University, LT-10105 Vilnius, Lithuania.

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|September 28, 2024
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Summary
This summary is machine-generated.

A new self-calibratable absolute modular rotary encoder simplifies installation and improves accuracy. Using the equal division average (EDA) method, it minimizes mounting errors by over 90%, enhancing modular encoder systems.

Keywords:
angular accuracyoptical encoderself-calibratable encoder

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Area of Science:

  • Microfabrication Technologies
  • Optical Engineering
  • Sensor Technology

Background:

  • Modern microfabrication integrates optical components and electronics into single-chip solutions for reflective encoders.
  • Semiconductor sensors offer wide tolerance ranges suitable for compact modular encoder systems.
  • Precise mechanical installation remains a challenge for achieving high accuracy in current encoder systems.

Purpose of the Study:

  • To develop a self-calibratable absolute modular rotary encoder to overcome installation challenges.
  • To leverage advanced sensors and simplify the assembly process for high-accuracy encoders.
  • To reduce the need for precise mechanical alignment in modular encoder kit systems.

Main Methods:

  • Development of a self-calibratable absolute modular rotary encoder prototype.
  • Implementation of the equal division average (EDA) method using multiple optical sensor readings.
  • Experimental testing against a reference encoder to quantify measurement deviations.

Main Results:

  • The developed encoder demonstrates the ability to handle mounting errors effectively.
  • The equal division average (EDA) method significantly simplifies the installation process.
  • Initial system deviation was minimized by over 90% through the proposed self-calibration technique.

Conclusions:

  • The self-calibratable absolute modular rotary encoder successfully addresses the need for precise mechanical installation.
  • The EDA method provides a robust solution for enhancing accuracy in modular encoder systems.
  • This innovation maximizes the potential of modern semiconductor sensors in compact encoder applications.