Publications Details
Microtextured resonators for measuring liquid properties
The response of smooth- and textured-surface thickness-shear mode (TSM) quartz resonators in liquid has been examined. Smooth devices, which viscously entrain a layer of contacting liquid, exhibit a response that depends on the product of liquid density and viscosity. Textured-surface devices, with either randomly rough or regularly patterned features, also trap liquid in surface features, exhibiting an additional response that depends on liquid density alone. Combining smooth- and textured-surface resonators in a monolithic sensor enables simultaneous extraction of liquid density and viscosity.