Interaction forces during the sliding of a water droplet on a textured surface

Nguyen Thanh-Vinh, Hidetoshi Takahashi, Kiyoshi Matsumoto, Isao Shimoyama

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

We have directly measured the interaction forces (in normal and lateral directions) during the sliding of a water droplet on a surface decorated with a micropillar array. The measurement was carried out using a MEMS-based two-axis force sensor array. The advantages of our sensor array were the high sensitivity and miniaturized size of the ultrathin cross-shaped piezo-resistive silicon structure fabricated under a micropillar to detect both the normal and lateral forces acting on the micropillar. A demonstrating measurement using a water droplet with volume of 18 μL sliding on the micropillar array was carried out. The measurement results showed a fluctuation in the interaction forces when the micropillar was close to the trailing edge or leading edge of the droplet. Meanwhile, in the inner region of the contact line, both the normal and lateral interaction forces were relatively stable. These results indicate that the interaction forces at the edges of the droplet are important factors controlling the sliding motion of the droplet.

本文言語English
ホスト出版物のタイトルMEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
出版社Institute of Electrical and Electronics Engineers Inc.
ページ979-982
ページ数4
ISBN(印刷版)9781479935086
DOI
出版ステータスPublished - 2014 1 1
外部発表はい
イベント27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, CA, United States
継続期間: 2014 1 262014 1 30

出版物シリーズ

名前Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN(印刷版)1084-6999

Other

Other27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
CountryUnited States
CitySan Francisco, CA
Period14/1/2614/1/30

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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