Meniscope: A Low-Cost Fluid Interface Visualizer
Daniel M. Harris

TL;DR
Meniscope is an affordable, easy-to-assemble device that visualizes fluid surface deformations using color gradients, facilitating hands-on learning of free-surface measurement techniques.
Contribution
This paper introduces Meniscope, a novel low-cost, portable device that visualizes fluid interfaces through a color-based gradient detection method, expanding accessibility for fluid surface analysis.
Findings
Successfully visualizes static and dynamic free-surface deformations
Demonstrates versatility in different experimental setups
Received positive feedback in hands-on workshops
Abstract
In this work, we describe the development and application of a low-cost fluid interface visualizer referred to as the ``Meniscope.'' The device works using a color-based surface gradient detector method that maps the gradient of an air-water interface to a specific color on a target pattern below using a converging lens. Sample experiments are outlined that showcase the working principle and functional versatility of the device. The device and assembly instructions were piloted in a hands-on workshop, with pertinent feedback reviewed herein. The Meniscope is a low-cost device that is capable of producing striking visualizations of static and dynamic free-surface deformations while introducing users to free-surface measurement techniques in an accessible and hands-on manner.
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Taxonomy
TopicsComputer Graphics and Visualization Techniques · Interactive and Immersive Displays · Electrowetting and Microfluidic Technologies
