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Apparatus for detecting defects, particularly in castings


Book ID
122756584
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
158 KB
Volume
24
Category
Article
ISSN
0963-8695

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Detecting defect in cast iron using high
โœ D.F. He; M. Yoshizawa; Y. Oyama; M. Nakamura ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 310 KB

For eddy-current NDE, due to the big permeability of ferromagnetic material, low testing frequency is needed to detect defects in it. SQUID has advantages in low frequency eddy current NDE. But the large magnetic field produced by ferromagnetic material often exceeds the dynamic range of general SQU