System for monitoring physical characteristics of fluids
Abstract
An apparatus and method are described for measuring physical characteristics of fluid, by placing a drop of the fluid in a batch of a second fluid and passing acoustic waves through the bath. The applied frequency of the acoustic waves is varied, to determine the precise value of a frequency at which the drop undergoes resonant oscillations. The resonant frequency indicates the interfacial tension of the drop in the bath, and the interfacial tension can indicate physical properties of the fluid in the drop.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- July 1983
- Bibcode:
- 1983nasa.reptS....T
- Keywords:
-
- Acoustic Measurement;
- Chemical Analysis;
- Liquids;
- Physical Properties;
- Baths;
- Drops (Liquids);
- Interfacial Tension;
- Patents;
- Resonant Frequencies;
- Suspending (Mixing);
- Transducers;
- Fluid Mechanics and Heat Transfer