MEASUREMENT OF FERROMAGNETIC TUBE WALL THICKNESS USING PULSED REMOTE FIELD TECHNIQUE |
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| Darko Vasić, Vedran Bilas, Davorin Ambruš |
- Abstract:
- Remote field eddy current (RFEC) technique is highly effective electromagnetic method for thickness measurement and assessment of ferromagnetic tube walls corrosion. Measurements in harsh environments can be improved by reducing probe power consumption, simplifying its construction and speeding-up data acquisition. That could be achieved using pulse instead of sinusoidal driving current. Finite element simulations of pulsed RFEC phenomena in ferromagnetic tubes suggested its relevance. We performed measurements of ferromagnetic tube wall thickness with both sinusoidal and pulse excitation. Our first findings confirm applicability of the pulsed RFEC technique. However, significant reduction of exciter power is paid with complex data analysis.
- Keywords:
- wall thickness measurement, pulsed remote filed eddy current technique, ferromagnetic tube
- Download:
- IMEKO-TC4-2002-206.pdf
- DOI:
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