EDDY CURRENT FLAW DETECTION DEVICE AND EDDY CURRENT FLAW DETECTION METHOD

The present invention provides an eddy current flaw detection device that sufficiently removes noise from a detection signal. A magnetic field is applied to a test object by a magnetic-field forming magnet. The magnetic flux density of a magnetic field generated by the magnetic-field forming magnet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHIN, Akihiro, AZUMA, Hiroshi, YAMADA, Takaaki, ARAI, Hiroaki
Format:	Patent
Sprache:	eng
Schlagworte:	DECONTAMINATION ARRANGEMENTS THEREFOR INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TESTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	The present invention provides an eddy current flaw detection device that sufficiently removes noise from a detection signal. A magnetic field is applied to a test object by a magnetic-field forming magnet. The magnetic flux density of a magnetic field generated by the magnetic-field forming magnet is set at a value in a predetermined range according to a distance between the magnetic-field forming magnet and a detection surface and the thickness of the test object.