Measuring contact angle and meniscus shape with a reflected laser beam.

Abstract

Side-view imaging of the contact angle between an extended planar solid surface and a liquid is problematic. Even when aligning the view perfectly parallel to the contact line, focusing one point of the contact line is not possible. We describe a new measurement technique for determining contact angles with the reflection of a widened laser sheet on a… (More)
DOI: 10.1063/1.4861188

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