The paper proposes the use of a suitable multi-frequency approach applied to a novel instrument for the eddy current non-destructive testing on conductive materials. The instrument is composed by a smart eddy current probe, based on a Giant Magneto Resistance sensor, and a suitable processing unit. Key features of the proposed instrument are the capability to detect, locate and characterize thin defects as superficial and subsuperficial cracks. The proposed multi-frequency solution, together with a suitable data processing, allow both to increase the sensitivity in the defect detection and to improve the ability to evaluate the defect characteristics in terms of shape and dimension.
Multi-frequency Eddy Current Testing using a GMR based Instrument / Bernieri, Andrea; Betta, Giovanni; Ferrigno, Luigi; Laracca, Marco. - (2011), pp. 455-456. (Intervento presentato al convegno 15th International Symposium on Applied Electromagnetics and Mechanics-ISEM2011 tenutosi a Napoli).
Multi-frequency Eddy Current Testing using a GMR based Instrument
Marco LARACCA
2011
Abstract
The paper proposes the use of a suitable multi-frequency approach applied to a novel instrument for the eddy current non-destructive testing on conductive materials. The instrument is composed by a smart eddy current probe, based on a Giant Magneto Resistance sensor, and a suitable processing unit. Key features of the proposed instrument are the capability to detect, locate and characterize thin defects as superficial and subsuperficial cracks. The proposed multi-frequency solution, together with a suitable data processing, allow both to increase the sensitivity in the defect detection and to improve the ability to evaluate the defect characteristics in terms of shape and dimension.File | Dimensione | Formato | |
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