Sartori Paolo, Ferraro Davide, Pierno Matteo, Mistura Giampaolo
Department of Physics and Astronomy, University of Padua, Via Marzolo 8, 35131 Padua, Italy.
Micromachines (Basel). 2024 May 9;15(5):634. doi: 10.3390/mi15050634.
We studied the effects of vertical vibrations on a water drop that was pinned to the sharp edges of a rectangular post. By varying the frequency and amplitude of the vertical displacement, distinct resonance peaks were observed using a simple optical technique. The vibrational spectra of the first two modes exhibited two closely spaced peaks, which corresponded to standing waves that exist along the major and minor contour lengths of the drops. The values of the resonance frequencies can be explained rather well by a simple model, which was originally proposed for axially symmetric drops.
我们研究了垂直振动对固定在矩形柱尖锐边缘上的水滴的影响。通过改变垂直位移的频率和振幅，使用一种简单的光学技术观察到了明显的共振峰。前两种模式的振动光谱呈现出两个紧密间隔的峰，这对应于沿水滴的主轮廓长度和次轮廓长度存在的驻波。共振频率的值可以用一个最初为轴对称水滴提出的简单模型相当好地解释。
