FoamScan is designed to measure the ability of a liquid to generate foam by sparging a gas through the liquid. It will also determine persistence of the generated foam by measuring variation in its volume, density, and drainage rate.
Liquid sample is placed in a chamber which can be thermostatically controlled (optional). Onto this chamber is fixed a glass column equipped with several pairs of conductivity electrodes. Foam develops in the sample chamber (by sparging or stirring, optional) and rises into the glass column where it is viewed continuously by a video camera. Images from the video camera are captured by software along with conductivity measurements at all the electrodes. This data is used to calculate and plot foam volume and conductivity in real time.
Values measured and displayed in real time:
Values calculated in real time and displayed upon completion of the experiment: