This paper addresses the operation in microgravity of the surface reconstruction device whose design is detailed in the first part of the manuscript. The system, employed during the drop tower campaign of the UNOOSA DropTES 2019 StELIUM experiment, studies the axisymmetric and lateral oscillations of a ferrofluid solution in microgravity. The free liquid surface is reconstructed in a cylindrical tank and relevant metrics of the magnetic sloshing problem, such as contact angles, hysteresis parameters, natural oscillation frequencies, or damping ratios, are derived. The result is a rich and unique database where several phenomena of scientific and technological interest are reported for the first time. The dependence of the fundamental axisymmetric and lateral modal frequencies with the applied magnetic field is consistent with the literature and past experiments. Although the detection system was designed and built using low-cost hardware, high-quality results are obtained.

本文讨论了表面重建装置在微重力下的操作，其设计在手稿的第一部分进行了详细介绍。该系统在 UNOOSA DropTES 2019 StELIUM 实验的落塔活动中使用，研究微重力下铁磁流体溶液的轴对称和横向振荡。在圆柱形罐中重建自由液体表面，并推导出磁晃荡问题的相关指标，例如接触角、磁滞参数、自然振荡频率或阻尼比。结果是一个丰富而独特的数据库，其中首次报告了一些科学和技术感兴趣的现象。基本轴对称和横向模态频率与外加磁场的相关性与文献和过去的实验一致。虽然检测系统是使用低成本硬件设计和构建的，但获得了高质量的结果。