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Patent Searching and Data


Title:
VERIFYING STRUCTURAL INTEGRITY OF MATERIALS USING REACTIVE PARAMETER MEASUREMENTS
Document Type and Number:
WIPO Patent Application WO/2018/093863
Kind Code:
A3
Abstract:
The disclosure describes techniques and systems for detecting a crack or defect in a material. In some examples, a method for detecting a crack or defect in a material may include applying an electrical signal across an electrode pair electrically coupled to the material; determining a reactive parameter between the electrode pair; and determining whether the material includes a crack or other defect based on the reactive parameter. In some examples, the reactive parameter may include a capacitance, an electrical phase difference, or the like.

Inventors:
REDINGER DAVID H (US)
YUNGERS CHRISTOPHER R (US)
SCHUMACHER JENNIFER F (US)
JESME RONALD D (US)
Application Number:
PCT/US2017/061753
Publication Date:
July 26, 2018
Filing Date:
November 15, 2017
Export Citation:
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Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
G01N27/24; G01N27/20
Domestic Patent References:
WO1989012833A11989-12-28
Foreign References:
US7443177B12008-10-28
US7161356B12007-01-09
US20050075800A12005-04-07
US5258708A1993-11-02
Attorney, Agent or Firm:
SPIELBAUER, Thomas M., et al. (US)
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