Water-in-oil model emulsions with various amounts of the aqueous phase
. i.e. 24 to 74 % by volume and with 4% NaCl, have been characterized
by means of time domain dielectric measurements in the frequency regio
n 50 MHz to 2 GHz. The measurements were carried out in a flow loop wh
ich made it possible to do the characterization of the emulsions both
under flow and at rest. The flowing emulsions show in general lower st
atic permittivities than the corresponding emulsions at rest. The diel
ectric data are explained by models involving a flocculation of the aq
ueous droplets. The result indicate just a small deviation from spheri
city of the formed flocs.