Electrical impedance sensors for multiphase flow measurement

For the investigation of multiphase or multicomponent flows, which are of interest for instance in the oil extraction and processing or in the chemical engineering, there are only few suitable measuring techniques. This presentation gives an overview about the recent efforts of your group in applying high-speed complex impedance measurements for the investigation of dynamic fluid flow. We present a new developed high-speed complex permittivity needle probe as well as a feasibility study for the development of a complex impedance wire-mesh sensor.