Pulsed eddy current nondestructive testing of ferromagnetic tubes

Vasić, Darko; Bilas, Vedran; Ambruš, Davorin

doi:10.1109/imtc.2003.1207928

Cited by 29 publications

(58 citation statements)

References 5 publications

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“…The bobbin-typed coils are usually used to inspect hollow cylindrical structures, such as pipes and bore holes, from the inside. In PEC NDT, a coil of this type which is used in remote field mode has been used for measurement of wall thickness of ferromagnetic tubes [12].…”

Section: Probesmentioning

confidence: 99%

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Pulsed Eddy Current Non-destructive Testing and Evaluation: A Review

Sophian

Tian

Fan

2017

Chin. J. Mech. Eng.

198

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Pulsed eddy current (PEC) non-destructive testing and evaluation (NDT&E) has been around for some time and it is still attracting extensive attention from researchers around the globe, which can be witnessed through the reports reviewed in this paper. Thanks to its richness of spectral components, various applications of this technique have been proposed and reported in the literature covering both structural integrity inspection and material characterization in various industrial sectors. To support its development and for better understanding of the phenomena around the transient induced eddy currents, attempts for its modelling both analytically and numerically have been made by researchers around the world. This review is an attempt to capture the state-of-the-art development and applications of PEC, especially in the last 15 years and it is not intended to be exhaustive. Future challenges and opportunities for PEC NDT&E are also presented.

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Section: Probesmentioning

confidence: 99%

“…[12] for wall thickness measurement of ferromagnetic tubes from the inside. The researchers believe that this would be suitable for harsh-environment operation.…”

Section: Measurement Of Thickness and Evaluation Of Corrosionmentioning

confidence: 99%

Pulsed Eddy Current Non-destructive Testing and Evaluation: A Review

Sophian

Tian

Fan

2017

Chin. J. Mech. Eng.

198

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“…The risk identification and evaluation, as well as the accident prevention and reduction to ensure the safe operation have become significant in pipeline integrity management [2]. Methods for detection of pipeline damage mainly include the ultrasonic method [3,4], the eddy current method [5,6], the fiber optic sensor based method [7][8][9][10], and the acoustic emission method [11]. Due to its advantages of combined sensing and actuation capacities [12], the piezoelectric transducer bonded to the structure is used as an effective diagnostic method in the structural health monitoring (SHM).…”

Section: Introductionmentioning

confidence: 99%

Damage detection of pipeline multiple cracks using piezoceramic transducers

Du¹,

Huo²,

Kong³

et al. 2016

J. vibroeng.

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Abstract.To study the feasibility of detecting pipeline multi-cracks damage using piezoceramic transducers, the electromechanical impedance method and the stress wave based active sensing method were used respectively to perform the damage detection of pipeline with multi-cracks. In this research, the lead zirconate titanate (PZT) type transducers were used due to its strong piezoelectric effect and low cost. During the experiments, two artificial cracks on the pipeline specimen were created, ranging from 0 mm to 9 mm, and seven different operating conditions were generated for each artificial crack. In the monitoring test, for the electromechanical impedance method, the damage index based on Root Mean Square Deviation (RMSD) was used, and for the active sensing method, the damage index based on Wavelet Packet Energy Loss (WPEL) was used. In addition, the relationship between the crack depth and RMSD as well as the relationship between the crack depth and location and WPEL were analyzed. The results show that RMSD and WPEL indices increase with the increase of the depth of pipeline cracks. In addition, the WPEL index increases with the appearance of new cracks. Quantitative analysis of pipeline crack damage can be realized by electromechanical impedance method, and localization analysis on the pipeline multi-cracks damage can be achieved by stress wave method based on sensor arrays.

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“…The Eddy Current Testing (ECT), in particular, is effective in determining the status of the surface abnormality of metals. There are many different types of eddy current testing probes, such as the Impedance probe, T/R probe, and T/T probe [1][2][3][4]. The number of uses of eddy current testing has been gradually increasing, so it has become necessary to analyze the characteristics and make comparisons between different types of probes.…”

Section: Introductionmentioning

confidence: 99%