Conductive microbead array detection by high-frequency eddy-current testing technique with SV-GMR sensor
نویسندگان
چکیده
منابع مشابه
Eddy-current Testing with Gmr Magnetic Sensor Arrays
The advent of GMR magnetic sensors and GMR sensor arrays with frequencyindependent sensitivity offers improvements in speed, depth, and resolution in eddy-current testing. Arrays of GMR magnetic sensors allow rapid scanning of an area for defects in a single pass. The small size and low power consumption of these solid-state magnetic sensors enable the fabrication of compact arrays of sensors o...
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Nondestructive inspections involving multi-layered structures often require a reliable NDI methodology to estimate size and location of a flaw with quantitative information about width and depth. Compared to conventional wire-wound pick-up coil based eddy current NDI methods, Giant Magneto-resistive (GMR) sensor based eddy current methods have shown a much better sensitivity (20–50 times) for a...
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Defect detection in conductive plates represents an important issue. This work presents designed and implemented uniform eddy current probe architecture (UECP) that includes a planar excitation coil and a GMR magnetometer sensor array as part of a non-destructive testing (NDT) system developed using a virtual instrument system technology. The usage of GMR sensors provides frequency independent ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Magnetics
سال: 2005
ISSN: 0018-9464
DOI: 10.1109/tmag.2005.855172