DocumentCode :
1075506
Title :
Eddy Current Technique Based on 
-SQUID and GMR Sensors for Non-Destructive Evaluation of Fiber/Metal Laminates
Author :
Bonavolontà, Carmela ; Valentino, Massimo ; Marrocco, Nicola ; Pepe, Giovanni Piero
Author_Institution :
CRS "Coherentia", Nat. Inst. of Matter Phys., Naples, Italy
Volume :
19
Issue :
3
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
808
Lastpage :
811
Abstract :
In this work we present non-destructive evaluation measurements on fiber/metal laminate specimen by using eddy current techniques employing HTc SQUID (superconductive quantum interference device) and giant magneto-resistive (GMR) sensors. Our aim is to compare the performance and the capability of HTc SQUID and GMR sensors to detect the presence of damage inside FML composite materials. Experimental results concerning the detection of artificial defects in aeronautical structures with high magnetic sensitivity by using HTc SQUID, and with high spatial resolution using GMR, will be presented and discussed.
Keywords :
SQUIDs; eddy current testing; fibre reinforced plastics; giant magnetoresistance; high-temperature superconductors; laminates; magnetic sensors; FML composite material; GMR sensor; HTc SQUID; aeronautical structure; eddy current technique; fiber epoxy layer; fiber-metal laminates; giant magneto-resistive sensor; non-destructive evaluation measurement; superconductive quantum interference device; ${rm HT}_{rm c}$
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2009.2019197
Filename :
5075608
Link To Document :
