This work analyzes the stability of water-in-oil emulsions with electric field applied, which is of practical use, but still needs to be understood regarding how to define the optimal electric field to maximize the separation of water from oil. Model emulsions with water contents between 15 and 25 wt% are used throughout the experiments. In this paper, visual monitoring is performed with a microscope with electric field applied. Microscopic analysis in conjunction with the measured current, the stability of the emulsions, as a function of the applied electric field, is evaluated. In addition, the use of wavelet transform is proposed, which allows for a more precise identification of the electric field that leads to flocculation, which reverses the separation process. The current signal spectrogram obtained from the wavelet transform makes it possible to correctly differentiate the critical electric field for optimal separation.

中文翻译：

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电场作用下油包水乳液失稳过程的显微镜分析与评价

这项工作分析了施加电场的油包水乳液的稳定性，这具有实际用途，但仍然需要了解如何定义最佳电场以最大程度地将水与油分离。在整个实验中使用水含量在 15 至 25 重量％之间的模型乳液。在本文中，视觉监测是通过施加电场的显微镜进行的。结合测量电流的显微分析，评估乳液的稳定性，作为外加电场的函数。此外，还提出了小波变换的使用，它允许更精确地识别导致絮凝的电场，从而逆转分离过程。