A novel TMR based triaxial eddy current test probe for any orientation crack detection
| Autor: | M. Laracca, Antonio Rasile, Luigi Ferrigno, S. Sangiovanni, Giovanni Betta |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Orientation (computer vision) Applied Mathematics Acoustics 020208 electrical & electronic engineering 010401 analytical chemistry Flow (psychology) defect orientation double coil probe Eddy Current testing magnetic measurements TMR sensor triaxial sensor 02 engineering and technology Experimental validation Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Electromagnetic coil law Eddy-current testing 0202 electrical engineering electronic engineering information engineering Eddy current Measurement uncertainty Electrical and Electronic Engineering Instrumentation Excitation |
| Zdroj: | Measurement. 181:109617 |
| ISSN: | 0263-2241 |
| DOI: | 10.1016/j.measurement.2021.109617 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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