A simplified method for measurements of low interfacial tension coefficient which is applicable for binary mixtures is proposed. The technique is based on generating progressive capillary waves at a liquid interface by radiation pressure of a short ultrasound pulse in microgravity condition. The waveforms are then processed in the spatial domain. The method presents the advantage of strongly reducing data volume of necessary images for analysis and, consequently, significantly minimizing both data processing and time expenses thanks to the analysis in spatial domain instead of time domain as hitherto reported in the literature.

中文翻译：

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超声激励毛细管波的空间波形分析，用于测量微重力中的界面张力系数

提出了一种适用于二元混合物的低界面张力系数的简化测量方法。该技术基于在微重力条件下通过短超声脉冲的辐射压力在液体界面产生渐进式毛细管波的技术。然后在空间域中处理波形。该方法的优点是大大减少了分析所需图像的数据量，并因此大大减少了数据处理和时间开销，这要归功于在空间域而不是迄今文献中报道的时域分析。