Guided-wave tomographic imaging of defects in pipe using a probabilistic reconstruction algorithm

Velsor, Jason K. Van; Gao, Huidong; Rose, Joseph L.

doi:10.1784/insi.2007.49.9.532

Cited by 56 publications

(45 citation statements)

References 12 publications

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“…ln recent years, ElJGW imaging technique has been developed to obtain more detailed information about defects [15-1 6]. Guided wave tomography imagi ng exploits an array of transducers to transmit and receive a group of guided wave rays and reconstructs the defect image using the projection data [17][18][19]. When guided wave e ncounters defects and strong scattering happens, the effect of scatteri ng will dominate a nd lead to much artifacts on the reconstructio n image of defects, w hi ch severely d egrades the positioning acc uracy and image quality of defects obtained by traditional guided wave imaging m ethods [20].…”

Section: Introductionmentioning

confidence: 99%

Profile imaging of actual defects in steel plate based on electromagnetic ultrasonic SH guided wave scattering

Wang¹,

Wang²,

Huang³

et al. 2017

insight

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, W. (2017) 'Prole imaging of actual defects in steel plate based on electromagnetic ultrasonic SH guided wave scattering.', Insight : non-destructive testing and condition monitoring., 59 (7). pp. 383-388. Further information on publisher's website:https://doi.org/10. 1784/insi.2017.59.7.383 Publisher's copyright statement:Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Then the error between calculated profile and actual profile is defined and displayed on the plane of the rectangular coordinate system. Results show that the profile image almost clings to actual profile of the defect and the average profile error is only 4.3%. The proposed guided wave scattering model and profile imaging method are verified to be able to describe the profile of the actual defect with high-precision in steel plate.

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Section: Introductionmentioning

confidence: 99%

Profile imaging of actual defects in steel plate based on electromagnetic ultrasonic SH guided wave scattering

Wang¹,

Wang²,

Huang³

et al. 2017

insight

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show abstract

“…One of the effective ways to quantitatively monitor structures is to obtain the images via either scanning or tomography. There have been a number of different tomographic schemes, such as time-of-arrival imaging method, time-difference-of-arrival imaging method, energy arrival and the reconstruction algorithm for the probabilistic inspection of damage (RAPID) method [12,13]. The RAPID algorithm has been specifically formulated for applications with ultrasonic guided waves [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Quantification and imaging of corrosion wall thinning using shear horizontal guided waves generated by magnetostrictive sensors

Cho

2015

Sensors and Actuators A: Physical

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“…One of the most effective ways to quantitatively monitor a structure is to obtain an image either via scanning or tomography. There have been many different tomographic schemes, and some of the most well-known methods are the time-of-arrival imaging method, the time difference of arrival imaging method, the energy arrival method, and the reconstruction algorithm for the probabilistic inspection of damage (RAPID) method [6,7].…”

Section: Introductionmentioning

confidence: 99%

Guided-Wave Tomographic Imaging of Plate Defects by Laser-Based Ultrasonic Techniques

Park¹,

Lim²,

Cho

2014

Journal of the Korean Society for Nondestructive Testing

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Contact-guided-wave tests are impractical for investigating specimens with limited accessibility and rough surfaces or complex geometric features. A non-contact setup with a laser-ultrasonic transmitter and receiver is quite attractive for guided-wave inspection. In the present work, we developed a non-contact guided-wave tomography technique using the laser-ultrasonic technique in a plate. A method for Lamb-wave generation and detection in an aluminum plate with a pulsed laser-ultrasonic transmitter and Michelson-interferometer receiver was developed. The defect shape and area in the images obtained using laser scanning, showed good agreement with the actual defect. The proposed approach can be used as a non-contact online inspection and monitoring technique.

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Guided-wave tomographic imaging of defects in pipe using a probabilistic reconstruction algorithm

Cited by 56 publications

References 12 publications

Profile imaging of actual defects in steel plate based on electromagnetic ultrasonic SH guided wave scattering

Profile imaging of actual defects in steel plate based on electromagnetic ultrasonic SH guided wave scattering

Quantification and imaging of corrosion wall thinning using shear horizontal guided waves generated by magnetostrictive sensors

Guided-Wave Tomographic Imaging of Plate Defects by Laser-Based Ultrasonic Techniques

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