• Raindrops falling on textiles - a frequent application case for roll-off angles

    Raindrops falling on textiles - a frequent application case for roll-off angles

Dosing falling drops with a defined volume for contact and roll-off angles

Exact repeatability thanks to software-based generation of drops

When it comes to measurements involving falling drops, the drop size and fall height have to be kept constant if comparable results are to be achieved. If the same needle diameter is used, falling drops of the same liquid are indeed always the same size. However, it is almost impossible to specify the volume or to dose different liquids with the same volume. In this Technical Note, we will present a method which can be used to generate drops with an exactly defined volume and purposefully detach them from the needle.

Download the full technical note (TN319) on this subject.

Download | Technical Note

TN319

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