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Closed Loop Control of Bubble-Propelled Microrobots.

Yanda Yang1, David Rivas1, Max Sokolich1

  • 1Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, United States.

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|July 4, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces automated control for fast bubble-propelled microrobots using visual feedback and magnetic fields. This method enables precise autonomous navigation, overcoming speed-related control challenges.

Keywords:
Active MatterClosed loop controlMicrorobotsPatchy Particles

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Area of Science:

  • Robotics
  • Microtechnology
  • Control Systems

Background:

  • Bubble-propelled microrobots offer high speed for applications like micromanipulation and flow navigation.
  • Their rapid movement presents significant challenges for precise motion control.

Purpose of the Study:

  • To develop an automated control system for bubble-propelled microrobots.
  • To enhance precise navigation and trajectory tracking of these microrobots.

Main Methods:

  • Implementing visual feedback for real-time microrobot monitoring.
  • Utilizing uniform magnetic fields for steering and direction constraint.
  • Employing a closed-loop control mechanism for autonomous navigation.

Main Results:

  • Demonstrated satisfactory tracking performance for microrobot navigation.
  • Achieved an average tracking error of 6.7 micrometers for a 24-micrometer microrobot.
  • Successfully enabled precise autonomous navigation along prescribed trajectories.

Conclusions:

  • Automated control using visual feedback and magnetic fields effectively addresses the motion control challenges of high-speed microrobots.
  • The proposed closed-loop system ensures accurate trajectory following.
  • This approach enhances the applicability of bubble-propelled microrobots in various fields.