ARRANGEMENT AND METHOD TO APPLY DIFFUSING WAVE SPECTROSCOPY TO MEASURE THE PROPERTIES OF MULTI-PHASE SYSTEMS, AS WELL AS THE CHANGES THEREIN

摘要

Arrangement for measuring physico-chemical properties of liquid, such as solutions, dispersions and emulsions. The arrangement comprises a light source (1) for producing and emitting light in the liquid (7), a detector for detecting said light after being scattered by said liquid (7), processing means arranged for receiving an output signal from said detector. The processing means is further arranged to calculate a maximum value of the mean square displacement < DELTA rm<2>> from the autocorrelation function g<(2)> as a function of time and the value of the property from said calculated maximum value of the mean square displacement < DELTA rm<2>>.