Comparison Study of Different Features for Pocket Length Quantification of Angular Defects Using Eddy Current Pulsed Thermography

Zhu, Junzhen; Tiany, Guiyun; Qin, Min; Wu, Jianbo

doi:10.1109/tim.2018.2890053

Cited by 24 publications

(15 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 shows the basic schematic diagram for the ECPT of IT detection system using the reflection mode configuration. Similar experimental configuration can be found in [25]. In this configuration, the IR camera and the excitation are placed face the same direction and opposite to the specimen under test.…”

Section: A Experiments Set-up and Specimen Detailsmentioning

confidence: 99%

“…The thermographic images in the raw form contain a lot of noise and the defect information is not clear. To tackle this problem feature extraction, sparse representation and other post image processing techniques are used to reduce the noise the extract the defects information [22]- [25]. Generally, the sparse representation and decomposition based algorithms are utilized to detect the defects using IT.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sparse Low-Rank Tensor Decomposition for Metal Defect Detection Using Thermographic Imaging Diagnostics

Ahmed

Gao

Woo

2021

IEEE Trans. Ind. Inf.

View full text Add to dashboard Cite

Section: A Experiments Set-up and Specimen Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sparse Low-Rank Tensor Decomposition for Metal Defect Detection Using Thermographic Imaging Diagnostics

Ahmed

Gao

Woo

2021

IEEE Trans. Ind. Inf.

View full text Add to dashboard Cite

“…The system works under the reflective mode, where the sensor and excitation source are on the same side of the targeted component. Comparing with other IR cameras commonly used in active thermography, such as FLIR SC7600 [24] and FLIR A655sc [25], Lepton has a much smaller size (similar to the UK's 5 pence coin). Table S1 in Supplementary Materials shows the comparison of the specifications of the FLIR SC7600, the A655sc and the Lepton, which will be tested and compared in this paper.…”

Section: B Mat Systemmentioning

confidence: 99%

A Miniaturized Active Thermography System to Inspect Composite Laminates

Liu

Zhao

et al. 2021

IEEE Trans. Ind. Inf.

View full text Add to dashboard Cite

With the rapid increase of the integration and complexity of industrial components, the inaccessibility and inapplicability of existing Non-destructive testing devices have become a bottleneck for in-situ inspection of these objects. This paper introduces a miniaturised active thermography system featured with a small size, low resolution and low-cost thermal sensor, where two optional excitation sources including flash and laser are integrated. Dedicated data analysis approaches to evaluate defects are proposed considering the degraded signal quality. Three carbon fibre reinforced polymer laminates with a variety of defects are evaluated quantitatively and qualitatively using the proposed system by comparing with two existing nonminiaturised inspection systems. The results show that the proposed system can work effectively for the degradation assessment of composite laminates. Even with the technical limitations that affect the detectability, for instance, the low pixel resolution, this technique will play an important role to inspect components featured with geometrically intricate space.

show abstract

“…These works provide qualitative evaluation of the characteristics of the defect. Based on these works, a recent study [16] discussed feature-based quantitative relationship of defect size (depth and length) and their thermal responses.…”

Section: Introductionmentioning

confidence: 99%

Tomographic Reconstruction of Rolling Contact Fatigues in Rails Using 3D Eddy Current Pulsed Thermography

et al. 2021

View full text Add to dashboard Cite

The detection and quantification of the rolling contact fatigue (RCF) in rail tracks are essential for rail safety and condition-based maintenance. The tomographic reconstruction of the rolling contact fatigue is challenging work. The x-ray is unable to do in-situ inspection effectively. This paper proposes a new approach for RCF construction using 3D eddy current pulsed thermography. A differential time-square-root (sqrt) of temperature drop (DTSTD) is proposed as a mean to construct the sectional images and to reconstruct the thermal tomography image. The proposed method is validated through artificial angular crack slots as well as natural RCF crack. The thermal tomographic reconstruction is compared with the x-ray computed tomography on a rail track head cut-off with RCF cracks.

show abstract

Comparison Study of Different Features for Pocket Length Quantification of Angular Defects Using Eddy Current Pulsed Thermography

Cited by 24 publications

References 30 publications

Sparse Low-Rank Tensor Decomposition for Metal Defect Detection Using Thermographic Imaging Diagnostics

Sparse Low-Rank Tensor Decomposition for Metal Defect Detection Using Thermographic Imaging Diagnostics

A Miniaturized Active Thermography System to Inspect Composite Laminates

Tomographic Reconstruction of Rolling Contact Fatigues in Rails Using 3D Eddy Current Pulsed Thermography

Contact Info

Product

Resources

About