Apparatus and method for detecting flaws in conductive material
Abstract
The present invention is an improved sensing unit for detecting flaws in conductive material wherein the sensing coil is positioned away from a datum of either the datum point, the datum orientation, or a combination thereof. Position of the sensing coil away from a datum increases sensitivity for detecting flaws having a characteristic volume less than about 1 mm.sup.3, and further permits detection of subsurface flaws. Use of multiple sensing coils permits quantification of flaw area or volume.
- Inventors:
-
- Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- OSTI Identifier:
- 872677
- Patent Number(s):
- 5986452
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; method; detecting; flaws; conductive; material; improved; sensing; unit; coil; positioned; datum; orientation; combination; position; increases; sensitivity; characteristic; volume; permits; detection; subsurface; multiple; coils; quantification; flaw; permits detection; sensing coil; conductive material; detecting flaws; surface flaws; /324/
Citation Formats
Hockey, Ronald L, and Riechers, Douglas M. Apparatus and method for detecting flaws in conductive material. United States: N. p., 1999.
Web.
Hockey, Ronald L, & Riechers, Douglas M. Apparatus and method for detecting flaws in conductive material. United States.
Hockey, Ronald L, and Riechers, Douglas M. Fri .
"Apparatus and method for detecting flaws in conductive material". United States. https://www.osti.gov/servlets/purl/872677.
@article{osti_872677,
title = {Apparatus and method for detecting flaws in conductive material},
author = {Hockey, Ronald L and Riechers, Douglas M},
abstractNote = {The present invention is an improved sensing unit for detecting flaws in conductive material wherein the sensing coil is positioned away from a datum of either the datum point, the datum orientation, or a combination thereof. Position of the sensing coil away from a datum increases sensitivity for detecting flaws having a characteristic volume less than about 1 mm.sup.3, and further permits detection of subsurface flaws. Use of multiple sensing coils permits quantification of flaw area or volume.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
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