Micro swimming mechanisms propelled by external magnetic fields

被引：182

作者：

Honda, T

Arai, KI

Ishiyama, K

机构：

[1] Research Institute of Electrical Communication, Tohoku University, Aoba-ku, Sendai 980-77

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1996年 / 32卷 / 05期

关键词：

D O I：

10.1109/20.539498

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：5085 / 5087

页数：3