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Droplet-adhesion measurements
A tilting test platform for comparing how readily droplets move across different surfaces.
Open the numbered review →Test platform
Photos 260–261
Photo 260 ·
Comparing water-repellent surfacesA tilting platform for studying how easily droplets slide off different surfaces, including water-repellent coatings. The intended measurement was the angle at which a drop began to move. This supported experiments with tiny fluid-control valves, including using oil droplets to cover or uncover openings.
Photo 261 ·
Another view of the droplet-angle testerAnother photograph of the tilting device shown in Photo 260. I used it to measure the angle at which a droplet began to roll or slide off a surface, helping me compare how strongly different surfaces held onto the liquid.