A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils

This paper proposes an effective method to manipulate the 2D motions of a magnetic small-scale robot (microrobot) within a relatively large working area using a triad of electromagnetic coils (TEC). The TEC is a combination of three identical circular coils placed at the vertices of an equilateral t...

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Main Authors: Hakjoon Lee, Dongjun Lee, Seungmun Jeon
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/3/416
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author Hakjoon Lee
Dongjun Lee
Seungmun Jeon
author_facet Hakjoon Lee
Dongjun Lee
Seungmun Jeon
author_sort Hakjoon Lee
collection DOAJ
description This paper proposes an effective method to manipulate the 2D motions of a magnetic small-scale robot (microrobot) within a relatively large working area using a triad of electromagnetic coils (TEC). The TEC is a combination of three identical circular coils placed at the vertices of an equilateral triangle. Since it is geometrically compact and requires only three control variables (input currents), the TEC can be effectively used to generate various magnetic fields that can be used to maneuver various functional microrobots. In this paper, we established several equations to calculate the input currents of the TEC required to move a microrobot along a designated pathway effectively and precisely. We also constructed an experimental setup to demonstrate and validate the controlled motions of the microrobot using the proposed method. The results showed that the proposed method can effectively improve the TEC’s practical working area (region of interest) for manipulating the microrobot, which can possibly be applied to biomedical and biological applications, including minimally invasive surgery, targeted drug and cargo delivery, microfluidic control, etc.
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spelling doaj.art-80f682de64ce442e9956c19015febeea2023-11-30T21:33:51ZengMDPI AGMicromachines2072-666X2022-03-0113341610.3390/mi13030416A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic CoilsHakjoon Lee0Dongjun Lee1Seungmun Jeon2Department of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, KoreaDepartment of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, KoreaDepartment of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, KoreaThis paper proposes an effective method to manipulate the 2D motions of a magnetic small-scale robot (microrobot) within a relatively large working area using a triad of electromagnetic coils (TEC). The TEC is a combination of three identical circular coils placed at the vertices of an equilateral triangle. Since it is geometrically compact and requires only three control variables (input currents), the TEC can be effectively used to generate various magnetic fields that can be used to maneuver various functional microrobots. In this paper, we established several equations to calculate the input currents of the TEC required to move a microrobot along a designated pathway effectively and precisely. We also constructed an experimental setup to demonstrate and validate the controlled motions of the microrobot using the proposed method. The results showed that the proposed method can effectively improve the TEC’s practical working area (region of interest) for manipulating the microrobot, which can possibly be applied to biomedical and biological applications, including minimally invasive surgery, targeted drug and cargo delivery, microfluidic control, etc.https://www.mdpi.com/2072-666X/13/3/416magnetic robotmagnetic navigation systemclosed-loop controlregion of interest
spellingShingle Hakjoon Lee
Dongjun Lee
Seungmun Jeon
A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils
Micromachines
magnetic robot
magnetic navigation system
closed-loop control
region of interest
title A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils
title_full A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils
title_fullStr A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils
title_full_unstemmed A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils
title_short A Two-Dimensional Manipulation Method for a Magnetic Microrobot with a Large Region of Interest Using a Triad of Electromagnetic Coils
title_sort two dimensional manipulation method for a magnetic microrobot with a large region of interest using a triad of electromagnetic coils
topic magnetic robot
magnetic navigation system
closed-loop control
region of interest
url https://www.mdpi.com/2072-666X/13/3/416
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