書誌事項
- タイトル別名
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- A New Method to Actuate a Droplet on a Plate by Use of Laser and Ultrasonic Oscillation(Fluids Engineering)
- 超音波振動およびレーザーを用いた固体面上の液滴の駆動に関する研究
- チョウオンパ シンドウ オヨビ レーザー オ モチイタ コタイメン ジョウ ノ エキテキ ノ クドウ ニ カンスル ケンキュウ
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A new method to actuate a small droplet on a plate was proposed. In order to reduce the resistance to the droplet movement, which is typically represented by the resultant of surface tension acting on the three-phase contact line, i.e., σ (cos θ_R-cos θ_A) (σ: liquid surface tension, θ_R, θ_A: receding and advancing contact angles), a supersonic oscillation was imposed on the plate to suppress the contact angle hysteresis (θ_R-θ_A). The experimental results using SAMs (Self-Assembled Monolayers) plates showed that the resistance was reduced by 80% due to the oscillation having the frequency of 28kHz and the amplitude of few micrometers. Then the Laser beam was directed to one end of the droplet. The contact angle was remarkably decreased due to the local heating of SAMs plate and the droplet moved to the end of the Laser beam, since the tangential component of surface tension at the heated end overcomes that on the other. The droplet can be actuated by about 0.6mm/s by the method combining the oscillation and the local heating by the Laser beam.
収録刊行物
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- 日本機械学会論文集Ｂ編
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日本機械学会論文集Ｂ編 76 (772), 2135-2142, 2010
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001206294874112
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- NII論文ID
- 110008006799
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- NII書誌ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL書誌ID
- 10955138
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可