マグネティックにプログラムされた分散型ロボット
Conrad L Smart1, Tanner G Pearson2, Zexi Liang1,3
1Laboratory of Atomic and Solid-State Physics, Cornell University, Ithaca, NY, USA.
まとめ
微小な機械で 可視光差の限界で 動作しています 磁気制御されたマイクロボットは 微波画像や 精密な力感知などの 先進的な応用を可能にします
科学分野:
- 光学とフォトニクス
- マイクロロボティクス
- ナノテクノロジー
背景:
- 顕微鏡のロボットは 顕微鏡の世界を探索し 操作するための新しい方法を提供します
- 光をマイクロスケールで制御することは 先進的な画像と光学アプリケーションに不可欠です
研究 の 目的:
- 微小ロボット (磁気制御ロボット) の新種を導入する. 微小ロボットと呼ばれる.
- これらのマイクロボットの能力を示します 微波画像,ビーム・ステアリング,フォーカス, フォース・センシング
主な方法:
- ナノメートルの厚さのメカニカル膜と プログラム可能なナノマグネットと 屈折光学要素を組み合わせたものです
- 可視光を散らすことができる 無線マイクロボットを開発する
- ミリテラスケールの磁場を使って 複雑なマイクロボットを再構成する
主要な成果:
- マイクロボットは可視光差の限界で動作します
- 構造化照明顕微鏡を用いたサブディフラクティブイメージングが実証された.
- 束の方向と焦点を合わせるために調整可能な光学要素を達成しました.
- ピコニュートンの感度で フォースセンシングを展示しました
結論:
- 微小ロボットと光学制御の 重要な進歩です
- これらのマイクロボットは 顕微鏡や光学操作や 感知に様々な用途があります
- この技術は 顕微鏡の世界を 探査し 相互作用する 新しい可能性をもたらします
関連する概念動画
Force On A Current Loop In A Magnetic Field
3.7K
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, commutators...
3.7K
Torque On A Current Loop In A Magnetic Field
5.6K
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...
5.6K
Magnetic Flux
4.2K
The magnetic flux measures the number of magnetic field lines passing through a given surface area. The SI unit for magnetic flux is the weber (Wb). Magnetic flux is a scalar quantity. It depends on three factors: the strength of the magnetic field B, the area through which the field lines pass, and the relative orientation of the field with the surface area.
Suppose a surface is divided into elements of area dA. For each element, the component of the magnetic field that is normal to the...
Suppose a surface is divided into elements of area dA. For each element, the component of the magnetic field that is normal to the...
4.2K
Magnetic Force
2.4K
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...
2.4K
Magnetic Damping
1.3K
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...
1.3K
Electro-mechanical Systems
1.3K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.3K


