Surface tension and viscosity measuring method and device

摘要

The measuring method and device determines the surface tension and viscosity of a liquid from the oscillation parameters of a liquid droplet which is caused to oscillate at a frequency adjacent its resonance frequency. The droplets are provided by a capillary (2) and caused to oscillate via a frequency generator (3), a power amplifier (4) and an electromechanical transducer (1), the oscillating droplet imaged onto a photodetector (7) via a light source (6).