粘性のある環境における無縛磁気装置のナビゲーションのための永久磁石ベースのロボットシステムの設計と制御
Zhengya Zhang1,2, Anke Klingner3, Sarthak Misra1,4
1Department of Biomaterials & Biomedical Technology, University of Groningen and University Medical Center Groningen, Groningen, 9713 AV, The Netherlands.
Scientific reports
|August 23, 2025
まとめ
この研究は,流動的な環境における無線磁気装置 (TMD) の制御のための新しいロボットシステムを導入します. このシステムは3Dの動きを正確に制御するために 同期して回転する磁場を使用し 最小侵襲的外科手術の応用を進めています
科学分野:
- ロボットと制御システム
- 生物医学工学
- 応用物理学
背景:
- 無線磁気装置 (TMD) は,侵襲性の少ない手術の可能性を秘めています.
- ロボットシステムからの外部磁場は,粘性液中のTMDを動かすことができます.
- 既存の方法はしばしば複数の磁石の複雑な操作を伴う.
研究 の 目的:
- 3D空間でTMDを制御するための永久磁石ベースのロボットシステムを設計し,実装する.
- 精密なTMDナビゲーションのための時間変動回転磁場を生成する.
- 流体環境における磁気操作の制御戦略を簡素化する.
主な方法:
- 2つの同期して回転する磁気二極を持つ新しいオープンコンフィギュレーションのロボットシステムが設計されました.
- コンフィギュレーション・トゥ・ポーズ・キネマティックとポーズ・トゥ・フィールド・マッピングが導かれました.
- 非線形逆運動の問題が最適化アルゴリズムを使用して解決されました.
主要な成果:
- このシステムは,TMDの正確な3D運動制御を実現しました.
- 実験結果は平均絶対誤差1.18mm,最大追跡誤差2.64mmを示した.
- 回転する磁場を操作するための簡素化されたアプローチが示されました.
結論:
- 開発されたロボットシステムは,流動的な環境でTMDを効果的に制御します.
- このアプローチは磁場生成とTMD運動制御を簡素化します.
- 将来の作業は,より多くの自由度でシステムの柔軟性を強化することを目的としています.
関連する概念動画
Torque On A Current Loop In A Magnetic Field
4.7K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
4.7K
Magnetic Force
1.1K
In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
The magnetic force acting on a moving charge...
The magnetic force acting on a moving charge...
1.1K
Force On A Current Loop In A Magnetic Field
3.3K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process,...
3.3K
Magnetic Damping
548
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
548
Magnetic Force On Current-Carrying Wires: Example
1.6K
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
1.6K
Potential Due to a Magnetized Object
355
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
The vector...
355


