Investigation of thin liquid film brake with measuring sound speed in the film

测量薄膜中声速的薄膜制动器研究

• 批准号: 22654048
• 负责人: SATO Makoto
• 金额: $ 0.55万
• 依托单位: Tsuyama National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22654048/
• 关键词: 液薄膜; 音速; 表面張力

The aim of this theme is to estimate binding molecule forces between surfactant molecules and inner liquid molecules in a soap film separately, and clarify the mechanism of the thin liquid film break. For this aim measuring sound speed and dispersion in a soap film was undertook. Mixed sound mode of surface tension wave and longitudinal wave, stimulated by a piezo ceramic in the soap film was detected with a piezo polymer. Sweeping the frequency of the sound, and using a 2-phase lock-in amplifier, the sound dispersion was tried to be measured. Series of frequency has not yet obtained successfully. From the lowest frequency obtained the sound speed of the mixed mode is estimated to be 80 m/s.

本课题的目的是分别估算表面活性剂分子与皂膜内液体分子之间的结合力，阐明薄液膜破裂的机理。为了这个目的，测量声速和分散在肥皂膜进行。用压电聚合物检测肥皂膜中压电陶瓷激发的表面张力波和纵波的混合声模式。扫描声音的频率，并使用一个2相锁定放大器，试图测量的声音分散。系列频率尚未成功获取。根据获得的最低频率，混合模式的声速估计为80 m/s。

项目成果

シャボン膜中の音速測定

肥皂膜中的声速测量

• 发表时间: 2012
• 作者: 金山太一;阪上雅昭;阪上雅昭;阪上雅昭;阪上雅昭;佐藤誠
• 通讯作者: 佐藤誠