The paper proposes the development, the analysis, and the experimental validation of a novel probe for Eddy Current (EC) Non-Destructive Testing especially thought to warrant good signal to noise ratios in the detection of thin defects when low excitation currents are adopted and whatever the orientation of the probe respect to the orientation of the defect. The probe is based on a simple double coil excitation, that generate a single direction EC flow, and adopts three magnetic sensors that form a triaxial magnetic sensor. Other main contributions of this paper are: i) performance analysis of an EC triaxial probe carried out in simulation environment that considers the measurement uncertainty of the magnetic sensors; ii) an experimental campaign that allow evaluating the performance of the realized probe; iii) a comparison between simulated and experimental results that prove the goodness of the proposed approach.

A novel TMR based triaxial eddy current test probe for any orientation crack detection / Betta, G.; Ferrigno, L.; Laracca, M.; Rasile, A.; Sangiovanni, S.. - In: MEASUREMENT. - ISSN 0263-2241. - 181:(2021), pp. 1-16. [10.1016/j.measurement.2021.109617]

A novel TMR based triaxial eddy current test probe for any orientation crack detection

Laracca M.
Conceptualization
;
Sangiovanni S.
2021

Abstract

The paper proposes the development, the analysis, and the experimental validation of a novel probe for Eddy Current (EC) Non-Destructive Testing especially thought to warrant good signal to noise ratios in the detection of thin defects when low excitation currents are adopted and whatever the orientation of the probe respect to the orientation of the defect. The probe is based on a simple double coil excitation, that generate a single direction EC flow, and adopts three magnetic sensors that form a triaxial magnetic sensor. Other main contributions of this paper are: i) performance analysis of an EC triaxial probe carried out in simulation environment that considers the measurement uncertainty of the magnetic sensors; ii) an experimental campaign that allow evaluating the performance of the realized probe; iii) a comparison between simulated and experimental results that prove the goodness of the proposed approach.
2021
defect orientation; double coil probe; Eddy Current testing; magnetic measurements; TMR sensor; triaxial sensor
01 Pubblicazione su rivista::01a Articolo in rivista
A novel TMR based triaxial eddy current test probe for any orientation crack detection / Betta, G.; Ferrigno, L.; Laracca, M.; Rasile, A.; Sangiovanni, S.. - In: MEASUREMENT. - ISSN 0263-2241. - 181:(2021), pp. 1-16. [10.1016/j.measurement.2021.109617]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1575373
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