Impedance sensing of flaws in non-homogenous materials

Details Impedance sensing of flaws in non-homogenous materials Impedance sensing of flaws in non-homogenous materials

1994-11-10

1997-02-11

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324663, 324686, 324693, 324699, 324722, 324519, 324525, G01N 2702, G01R 2702

Patent

active

056024860

ABSTRACT:
An apparatus and method for sensing impedances of materials placed in contact therewith. The invention comprises a plurality of drive electrodes and one or more sense electrodes. Both rotating electric fields and differently shaped electric fields are provided for, as are analysis of structure and composition at different orientations and depths.

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