DocumentCode
1476505
Title
Eddy current probe patterned in YBCO
Author
Podney, Walter N. ; Murduck, James M.
Author_Institution
SQM Technol. Inc., La Jolla, CA, USA
Volume
11
Issue
1
fYear
2001
fDate
3/1/2001 12:00:00 AM
Firstpage
1287
Lastpage
1290
Abstract
Superconductive quantum interference devices (SQUIDs) coupled to arrays of small pickup loops can give images of millimeter fatigue cracks deep inside structures, using eddy currents. Coupling magnetic flux from a pickup loop to a SQUID commonly leads to a thousand fold loss. An eddy current probe, patterned in YBCO, uses 37 parallel turns to couple magnetic flux from a pickup loop 8 mm in diameter to give an expected gain in flux transfer of about six, instead of a loss
Keywords
SQUIDs; barium compounds; eddy current testing; fatigue cracks; high-temperature superconductors; yttrium compounds; 8 mm; SQUIDs; YBCO; YBaCuO; coupling magnetic flux; eddy current probe; high temperature superconductor; millimeter fatigue cracks; small pickup loops; superconductive quantum interference devices; Couplings; Eddy currents; Fatigue; Interference; Magnetic flux; Millimeter wave devices; Probes; SQUIDs; Superconductivity; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.919585
Filename
919585
Link To Document