Micro swimming mechanisms propelled by external magnetic fields
Micro swimming mechanisms propelled by external magnetic fields
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DOI：
10.1109/20.539498
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发表时间：
1996-09-01
影响因子：
2.1
通讯作者：
Ishiyama, K
中科院分区：
文献类型：
--
作者：
Honda, T;Arai, KI;Ishiyama, K
提出了一种新型的微型水下机器人游动机构。它是由一个小磁铁连接到一个螺旋线。外部交变磁场使磁体由于磁力矩而旋转。因此，该机构可以由沿着螺旋行进的波浪推动而游动。游泳速度随激励频率的增加而线性增加，增加率取决于螺旋的形状。实验结果与Lighthill理论计算结果相吻合。
A new type of micro swimming mechanism is proposed for microrobots working in water. It is composed of a small magnet attached to a spiral wire. An external alternating magnetic field causes the magnet to rotate due to magnetic torque. As a result, the mechanism can swim propelled by waves traveling along the spiral. The swimming velocity increases linearly with increasing excitation frequency, and the increasing rate depends on the shape of the spiral. The experimental velocity agreed with the calculation result based upon Lighthill's theory.