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Recent Patents on Electrical Engineering

Editor-in-Chief

ISSN (Print): 1874-4761
ISSN (Online): 2213-1132

Recent Patents on Integrated Software / Hardware GMR - Based Systems and Applications for PCB Inspection

Author(s): Giuseppe Megali, Matteo Cacciola, Diego Pellicano and Francesco C. Morabito

Volume 2 , Issue 2 , 2009

Page: [82 - 91] Pages: 10

DOI: 10.2174/1874476110902020082

Price: $65

Abstract

In this paper, the issue of Eddy Current Non-Destructive Testing system exploiting Giant Magneto Resistive sensors is presented for inspection of Printed Circuit Board. We propose a wide view of the state-of-the-art into this interdisciplinary research field, following the chronological path of the major results achieved in recent years. Once the relevant background is depicted, some important patents concerning eddy current probe and, in general, integrated software/hardware Giant Magneto Resistive-based systems are introduced, with particular reference to some patents about crack detection in conducting materials. The advantages of the proposed models and some possible improvements are discussed. Then a final look to the possible developments is given.

Keywords: Crack detection, eddy-current testing, giant magneto resistive, printed circuit board, magnetic sensors


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