NONDESTRUCTIVE TEST METHOD AND NONDESTRUCTIVE TEST INSTRUMENT

WIPO Patent Application WO/2019/045027

A1

According to the present invention, when the site of an abnormality in a sample is detected by measuring a magnetic field distribution generated by the flow of a current through the sample, even when there is movement of the same sample between one measurement of the sample and another measurement performed after time has passed, the positions of the magnetic field distribution respectively obtained through the two measurements are adjusted. In this nondestructive test method: magnetic marks 15a, 15b, 15c are formed on one sample 1; one measurement, and another measurement performed after time has passed, are subsequently performed on the one sample; a magnetic field distribution for the one sample that includes a magnetic field generated by the magnetic marks in the one measurement is measured; a magnetic field distribution for the one sample that includes a magnetic field generated by the magnetic marks in the other measurement is measured; and the coordinates of the magnetic field distribution for the one sample acquired in the one measurement and the coordinates of the magnetic field distribution for the one sample acquired in the other measurement are caused to conform to magnetic field detection coordinates of the magnetic marks.

SEKINE KOUJIROU (JP)
IMADA MASAHIRO (JP)
YAGI TSUKASA (JP)
TSUCHIDA MASAAKI (JP)
HATANO TAKUJI (JP)

PCT/JP2018/032282

March 07, 2019

August 31, 2018

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KONICA MINOLTA INC (JP)

G01N27/82; G01R33/02; G01R33/10; H01M10/42; H01M10/48

JP2017003574A	2017-01-05
JP2015087372A	2015-05-07
JP2013054984A	2013-03-21
JP2015059818A	2015-03-30
JP2016176829A	2016-10-06
JP2005520136A	2005-07-07
JP2013164317A	2013-08-22

KOYO INTERNATIONAL PATENT FIRM (JP)

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