A Novel Probe of DC Electromagnetic NDT Based on Drag Effect: Design and Application in Crack Characterization of High-Speed Moving Ferromagnetic Material

Yuan, Fei; Yu, Yating; Wang, Wei; Tian, Gui Yun

doi:10.1109/tim.2021.3069036

Cited by 19 publications

(2 citation statements)

References 26 publications

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“…at this time, the best detection position is also changed. In order to study the best detection position in the state of fast motion, the finite element model is established according to the modeling method of reference [17], as shown in Figure 1. The thickness of the rail specimen is set to 14.0 mm.…”

Section: Simulation Research On the Optimal Detection Position 21 Est...mentioning

confidence: 99%

Research on the optimal detection location of rail RCF crack under fast moving condition

Liu,

2024

Preprint

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in this paper, the influence of shadow effect on the accuracy of crack detection in fast motion is studied. Through the finite element simulation analysis, the change of the magnetic field distribution on the rail surface under the trailing effect is explored, and the intensity and sensitivity of the detection signals at different detection positions are compared. By comparing the results, an optimal detection position with high signal strength and sensitivity is determined, and the best probe structure suitable for fast-moving electromagnetic nondestructive testing is proposed. The results show that the probe structure can effectively characterize the crack with a crack depth of more than 1.0mm when the detection speed reaches 20.0m/s, and the relative error and standard deviation are both less than 10%.

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Section: Simulation Research On the Optimal Detection Position 21 Est...mentioning

confidence: 99%

Research on the optimal detection location of rail RCF crack under fast moving condition

Liu,

2024

Preprint

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“…Thus far, many scholars have carried out some useful research on high-speed eddy current testing. Yuan et al [18] proposed a novel DC electromagnetic probe based on the drag effect at high speed that was used to quantify cracks. Their investigation indicated that this probe can quantify cracks at 20 m/s when the crack depth is deeper than 1 mm.…”

Section: Introductionmentioning

confidence: 99%

Investigation of rolling contact fatigue cracks using the transmitter-receiver eddy current testing under moving conditions

Tian

et al. 2023

Nondestructive Testing and Evaluation

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Rolling contact fatigue (RCF) cracks online detection using eddy current testing (ECT) is in urgent demand. However, RCF cracks detection and evaluation in this way under moving conditions remains challenging due to the velocity effect in ECT. This paper aims to study the response of a transmitter-receiver eddy current probe to cracks under moving conditions and evaluate the depth and inclination angle of RCF cracks. In this paper, a high-speed eddy current testing system is developed to experimentally investigate the influence of coil gap, detection speed, and the lift-off on the eddy current probe's response under moving conditions. In addition, the temporal and amplitude features of the eddy current signal are extracted to characterise the depth and inclination angle of the RCF cracks. The experimental results indicate the eddy current probe's response can be improved by increasing the coil gap (coil centre distance) suitably, which can be done to compensate for the attenuation of the eddy current signal caused by detection speed and lift-off. The probe's response hardly changes with an increase in detection speed when the driver and pick-up coils of the eddy current probe completely overlap. The maximum root means square error (RMSE) of evaluation for crack depth at different detection speeds was 0.36 mm. The maximum evaluation error for the inclination angle of the RCF crack was 4.2° when the detection speed was constant.

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Computational investigation of a novel metal thickness measurement system with coaxial triple-coil sensor for chemical mechanical polishing

Wang,

Tian,

Wang

et al. 2024

Int J Adv Manuf Technol

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A Novel Probe of DC Electromagnetic NDT Based on Drag Effect: Design and Application in Crack Characterization of High-Speed Moving Ferromagnetic Material

Cited by 19 publications

References 26 publications

Research on the optimal detection location of rail RCF crack under fast moving condition

Research on the optimal detection location of rail RCF crack under fast moving condition

Investigation of rolling contact fatigue cracks using the transmitter-receiver eddy current testing under moving conditions

Computational investigation of a novel metal thickness measurement system with coaxial triple-coil sensor for chemical mechanical polishing

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