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Selective characterization of material under test (MUT) with electromagnetic impedance tomography and spectroscopy

  • US 10,324,052 B2
  • Filed: 09/15/2017
  • Issued: 06/18/2019
  • Est. Priority Date: 11/20/2013
  • Status: Active Grant
First Claim
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1. A method of characterizing select volumes of a material under test (MUT) using electromagnetic impedance tomography and spectroscopy, the method comprising:

  • positioning an electrode array parallel to a surface of the MUT;

    instructing a signal generator operably connected with the electrode array to transmit a set of tomographic signals from the array of electrodes into the MUT;

    obtaining a complex impedance of a volume or voxel of the MUT based upon a return signal received at the electrode array while the electrode array remains in communication with the MUT; and

    applying at least one of a series circuit approach or a parallel circuit approach to compute a complex impedance of;

    segments of the volume, or sub-voxel of the voxel, using the measured values of the volume or voxel of the MUT.

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