Dynamic Foam Analyzer

Time-dependent analysis of bubble size in liquid foams

The FSM Foam Structure Module for the DFA100 captures the bubble size and size distribution of foam using intelligent video image analysis. The results help you to produce foam with the shape you want it to have. They also show the decay of long-lasting foam, long before it actually collapses, thus supporting you in optimizing foam stability.

Applications

• Foams for washing and cleaning

• Foams in food and personal care products

• Surfactant development

• Flotation as a method for separating solids

Measuring methods

• Foamability and foam stability using the optically detected height of foam created reproducibly
• Foam formation behavior of heavily foaming liquids using stirring cycles
• Optically detected foam bubble sizes and their statistical distribution
• Moisture and drainage behavior of foam using its electrical conductivity
• Carrying out a measurement up to 20 consecutive times and displaying the results together

Measuring results

• Bubble count per mm², mean bubble size and standard deviation as well as bubble radius directly after foam formation

• Decay observation by recording time-dependent values of all bubble size parameters

• Bubble size histogram showing size distribution

• Bubble count half-life

• Additional results for foam height and volume from DFA100 main instrument