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journal article·2023-11-01Open access

Micro-DC rotary-motor working smoothly with neither contact brush nor fixed-axis

Shusuke Ishida, Satoshi Takatori, Ken Hirano, Daigo Yamamoto, Yohei Oe, Kenichi Yoshikawa

AIP Advances· Volume 13· Issue 11
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Source abstract

Abstract

Successful construction of a simple sub-millimeter micromotor is reported, which operates under stationary direct current (DC) voltage, with neither a fixed rotational axis nor contacting brush. The screw-shaped chiral rotor undergoes a spinning motion when stationary DC voltage is applied using a pair of cone-shaped electrodes with a staggered arrangement. Analysis of the fluid motion revealed the occurrence of inward-swirling flow in between the electrode tips, which generates a stable spinning motion under the DC voltage. This simple DC micromotor could be beneficial for the advancement of microfluidics, microrobots, etc.
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Research context

OpenAlex topics: Micro and Nano Robotics · Microfluidic and Bio-sensing Technologies · Modular Robots and Swarm Intelligence

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Division of Material Science, Nara Institute of Science and Technology (NAIST) 1 , Nara 630-0192, Japan

Faculty of Life and Medical Sciences, Doshisha University 2 , Kyoto 610-0394, Japan

Research Organization of Science and Technology, Ritsumeikan University 3 , Shiga 525-8577, Japan

Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) 4 , Takamatsu, Kagawa 761-0395, Japan

Department of Chemical Engineering and Materials Science, Doshisha University 5 , Kyoto 610-0321, Japan

Center for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University 6 , Kyoto 606-8501, Japan

Funding

Japan Society for the Promotion of Science

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