Emulsions are liquid-liquid colloid systems whose properties and appearance are a function of the size of the dispersed phase (droplets). The characteristics of an emulsion are difficult to analyse due to the link between droplet size, stability and volume concentration. Ultrasound spectroscopy is able to characterise emulsions in line at the working concentration hence avoiding dilution with the resultant difficulties this presents in changing the emulsion's properties.
ITS Rheopipe technology combines USS and EIT technology to provide spatial and temporal sensing with microstructural characterisation to understand physical property and flow information of complex materials and processes simultaneously
A sunflower oil/water emulsion was produced using the shear forces generated in a rig through additions of sunflower oil to 2.4litres of water circulating in a flow loop. The sunflower oil was added in 120ml quantities at approximately 300 second intervals and the process simultaneously monitored using the ERT and USS sensors.
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