In addition, for some hazardous liquids, the use of these electrical devices may induce fire or explosion hazard. To have a safer field practice, an ultrasonic or acoustic sensor is an alternative to measure interface distance through finding the travel time of ultrasonic or acoustic waves [5]....
4.4. Liquid Marbles' Drying Compared to plain liquid droplets, liquid marbles have a core fluid protected by a porous shell, which delays the internal phase's evaporation. It is well known that once evaporation starts, the drop's volume decreases and the solid film thickens, due to particle ...
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