TITLE

Eddy current imager based on bobbin-type hall sensor arrays for nondestructive evaluation in small-bore piping system

AUTHOR(S)
Jun, Jongwoo; Lee, Jinyi; Kim, Jungmin; Le, Minhhuy; Lee, Sehoon
PUB. DATE
January 2013
SOURCE
AIP Conference Proceedings;Jan2013, Vol. 1511 Issue 1, p502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A bobbin coil with bobbin-type solid-state Hall sensor arrays was proposed for eddy current testing. A 32×32 matrix of InSb Hall sensors was set on a cylinder 15 mm in diameter and 25 mm long. The distorted alternating magnetic fields around inner diameter (ID) and outer-diameter stress corrosion cracks (ODSCCs)were imaged at 1 fps. The effectiveness of the proposed techniquewas verified with a standard copper alloy specimen with hole-type circumferential ID-and ODSCCs.
ACCESSION #
85094064

 

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