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Title: 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:
 [1];  [1]
  1. (Richland, WA)
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA
OSTI Identifier:
872677
Patent Number(s):
5986452
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
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 = {1999},
month = {1}
}

Patent:

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