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@INPROCEEDINGS{Zimmermann:139376,
      author       = {Zimmermann, Egon and Huisman, Johan Alexander and Glaas,
                      Walter and van Waasen, Stefan},
      title        = {{F}ast {EIT} data acquisition for geophysical applications},
      reportid     = {FZJ-2013-05372},
      year         = {2013},
      abstract     = {In the field of geophysics, spectral electrical impedance
                      tomography is used for structural characterization of soils
                      and rocks. The polarizability of these materials is very low
                      and the frequency range of interest extends from 1 mHz to
                      some kHz. In order to decrease the measurement time,
                      especially for the low frequencies, mathematically
                      orthogonal signals injected simultaneously at all current
                      electrodes will be used. In this contribution, we will
                      discuss the advantages and disadvantages of the method in
                      view of geophysical applications, present a system
                      realization and illustrate the performance regarding the
                      measurement time and phase accuracy in tomographic images.},
      month         = {Sep},
      date          = {2013-09-02},
      organization  = {7th World Congress on Industrial
                       Process Tomography, Krakau (Polen), 2
                       Sep 2013 - 5 Sep 2013},
      subtyp        = {Other},
      cin          = {ZEA-2 / IBG-3},
      cid          = {I:(DE-Juel1)ZEA-2-20090406 / I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246)},
      pid          = {G:(DE-HGF)POF2-246},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/139376},
}