Fiber Optic Capillary Flow Viscometer

Viscosity Sensors Based on III-Nitride Optical Devices Integrated With Droplet Sliding Channels

“…With the aid of advanced methods such as microfluidic channels, electromechanical resonators and vibrators [4], [5], [6], viscosity analysis based on a single droplet has been demonstrated. Among them, the measurement based on a droplet sliding on an inclined surface is a simple and cost-effective approach [7], [8]. Existing demonstrations require the implementation of external parts to track the motion of sliding droplets for determining viscosity values.…”