2017
DOI: 10.3390/s17030579
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An Eddy Current Testing Platform System for Pipe Defect Inspection Based on an Optimized Eddy Current Technique Probe Design

Abstract: The use of the eddy current technique (ECT) for the non-destructive testing of conducting materials has become increasingly important in the past few years. The use of the non-destructive ECT plays a key role in the ensuring the safety and integrity of the large industrial structures such as oil and gas pipelines. This paper introduce a novel ECT probe design integrated with the distributed ECT inspection system (DSECT) use for crack inspection on inner ferromagnetic pipes. The system consists of an array of g… Show more

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Cited by 64 publications
(38 citation statements)
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“…Effect of factors with central points and corresponded interactions was investigated by perturbation plots and response surface plots respectively. F ratio for the models ascertained less than 0.05 to ensure the fitting model reflects and appropriate for response prediction to the system [9].…”
Section: Experimental Designingmentioning
confidence: 99%
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“…Effect of factors with central points and corresponded interactions was investigated by perturbation plots and response surface plots respectively. F ratio for the models ascertained less than 0.05 to ensure the fitting model reflects and appropriate for response prediction to the system [9].…”
Section: Experimental Designingmentioning
confidence: 99%
“…Although, lowering of excitation frequency enhances the depth of penetration of eddy currents [8]. However the ECT methods detect variations in the magnetic field using coil which are fundamentally limited by their poor sensitivity at low frequencies weak strength of the magnetic fields limits the detection sensitivity of coils for deep flaws (>5.0 mm) [9]. At significant lift-off, no detectable emf will be induced in the secondary coil due to the sample [10,11].…”
Section: Introductionmentioning
confidence: 99%
“…While several techniques have been investigated for defect and crack detection of conductive materials [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], when it comes to thickness quantification of conductive ferromagnetic materials, the Pulsed Eddy Current (PEC) technique, especially the detector coil-based PEC sensor architecture, has been commonly used [21][22][23][24]. The main reason for this associated with detector coil-based PEC sensors can be identified as it being possible to extract signal features that are proportional to the diffusion time constant of eddy currents [23] induced inside a ferromagnetic wall-like structure, and this diffusion time constant behaving as a function of the wall thickness [23].…”
Section: Introductionmentioning
confidence: 99%
“…Once the buried pipes are damaged, the undesirable fluid losses due to leaks can cause enormous environmental and economic repercussions. Ultra-wideband (UWB) ground penetrating radar (GPR) [1][2][3] as one of the non-destructive techniques [4][5][6][7][8] to locate the underground pipes attracts increasing attention because it is capable of accurately locating both metallic and non-metallic pipes without prior knowledge. However, conventional UWB GPR utilizes short pulse as the transmit signals, which leads to a tradeoff between the resolution and the detection distance.…”
Section: Introductionmentioning
confidence: 99%