Electrochemical impedance spectroscopy system and methods for determining spatial locations of defects
Abstract
A method and apparatus for determining spatial locations of defects in a material are described. The method includes providing a plurality of electrodes in contact with a material, applying a sinusoidal voltage to a select number of the electrodes at a predetermined frequency, determining gain and phase angle measurements at other of the electrodes in response to applying the sinusoidal voltage to the select number of electrodes, determining impedance values from the gain and phase angle measurements, computing an impedance spectrum for an area of the material from the determined impedance values, and comparing the computed impedance spectrum with a known impedance spectrum to identify spatial locations of defects in the material.
- Inventors:
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175864
- Patent Number(s):
- 7088115
- Application Number:
- 11/015,427
- Assignee:
- Battelle Energy Alliance, LLC (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC07-99ID13727
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Glenn, David F., Matthern, Gretchen E., Propp, W. Alan, Glenn, Anne W., and Shaw, Peter G. Electrochemical impedance spectroscopy system and methods for determining spatial locations of defects. United States: N. p., 2006.
Web.
Glenn, David F., Matthern, Gretchen E., Propp, W. Alan, Glenn, Anne W., & Shaw, Peter G. Electrochemical impedance spectroscopy system and methods for determining spatial locations of defects. United States.
Glenn, David F., Matthern, Gretchen E., Propp, W. Alan, Glenn, Anne W., and Shaw, Peter G. Tue .
"Electrochemical impedance spectroscopy system and methods for determining spatial locations of defects". United States. https://www.osti.gov/servlets/purl/1175864.
@article{osti_1175864,
title = {Electrochemical impedance spectroscopy system and methods for determining spatial locations of defects},
author = {Glenn, David F. and Matthern, Gretchen E. and Propp, W. Alan and Glenn, Anne W. and Shaw, Peter G.},
abstractNote = {A method and apparatus for determining spatial locations of defects in a material are described. The method includes providing a plurality of electrodes in contact with a material, applying a sinusoidal voltage to a select number of the electrodes at a predetermined frequency, determining gain and phase angle measurements at other of the electrodes in response to applying the sinusoidal voltage to the select number of electrodes, determining impedance values from the gain and phase angle measurements, computing an impedance spectrum for an area of the material from the determined impedance values, and comparing the computed impedance spectrum with a known impedance spectrum to identify spatial locations of defects in the material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 08 00:00:00 EDT 2006},
month = {Tue Aug 08 00:00:00 EDT 2006}
}
Works referenced in this record:
Equivalent circuit model for AC electrochemical impedance spectroscopy of concrete
journal, November 2000
- Song, Guangling
- Cement and Concrete Research, Vol. 30, Issue 11