标题： 测量液体泡沫中超声波速度和衰减的技术 显示英文标题

标题： A technique for measuring velocity and attenuation of ultrasound in liquid foams

摘要： 我们描述了一个专门用于测量液体泡沫在广泛频率范围（60-600 kHz）内的超声波透射的实验装置。 确定泡沫的超声特性（密度、相速度和衰减）的问题通过透射测量进行了探讨。 提出了一种反演方法，并在合成数据上进行了测试，应用于不同时间阶段的液体泡沫。 发现超声波速度和衰减对泡沫气泡大小非常敏感，这表明可以为液体泡沫开发一种光谱技术。 显示英文摘要

摘要： We describe an experimental setup specifically designed for measuring the ultrasonic transmission through liquid foams, over a broad range of frequencies (60-600 kHz). The question of determining the ultrasonic properties of the foam (density, phase velocity and attenuation) from the transmission measurements is addressed. An inversion method is proposed, tested on synthetic data, and applied to a liquid foam at different times during the coarsening. The ultrasonic velocity and attenuation are found to be very sensitive to the foam bubble sizes, suggesting that a spectroscopy technique could be developed for liquid foams.