Joachim Berwix

Advanced electrical impedance tomography system with high phase accuracy

Andreas Kemna, Egon Zimmermann, Walter Glaas, 2010 .

EIT measurement system with high phase accuracy for the imaging of spectral induced polarization properties of soils and sediments

Harry Vereecken, Andreas Kemna, Egon Zimmermann, 2008 .

Determination of the distribution of air and water in porous media by electrical impedance tomography and magneto-electrical imaging

Johan Alexander Huisman, Harry Vereecken, Egon Zimmermann, 2011 .

A high-accuracy impedance spectrometer for measuring sediments with low polarizability

Johan Alexander Huisman, Andreas Kemna, Egon Zimmermann, 2008 .