Journal Article10.1016/J.YMSSP.2021.108462
FRF-based lamb wave phased array
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TL;DR: In the present method, the point-by-point scan is replaced by a single measurement for FRF with the “Single Input, Multiple Output” (SIMO) mode, which ensures the scan work can be established in N times excitations, which means the excitation waveform can be virtually selected and changed after recording.
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About: This article is published in Mechanical Systems and Signal Processing. The article was published on 01 Mar 2022. The article focuses on the topics: Beamforming & Waveform.
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Citations
A modal decomposition imaging algorithm for ultrasonic detection of delamination defects in carbon fiber composite plates using air-coupled Lamb waves
TL;DR: In this paper , a modal decomposition imaging (MDI) algorithm for detecting delamination defects in carbon fiber composite plates using air-coupled Lamb waves was proposed, which is more suitable for analyzing the nonlinear and non-stationary leakage Lamb waves signal.
18
Lamb wave imaging based on multi-frequency sparse decomposition
Caibin Xu,Mingxi Deng +1 more
TL;DR: In this paper , a multi-frequency sparse decomposition in the frequency domain is proposed for damage localization in isotropic plate-like structures, where each single frequency component of the scattering signals obtained from the sensor array is sparsely decomposed one by one to obtain the frequencydependent scattering coefficients.
16
Waveform correlation factor (WCF) weighted TFM imaging for Lamb wave phased array
Caibin Xu,Mingxi Deng +1 more
TL;DR: In this paper , a waveform correlation factor (WCF) weighted total focusing method (TFM) is proposed to improve the imaging performance of the classical TFM, which is an effective post-processing technique for Lamb wave phased array based damage imaging.
15
Phased array imaging for damage localization using multi-narrowband Lamb waves
TL;DR: In this article , a multi-narrowband fusion method was proposed to improve the image quality of Lamb wave phased array imaging, where the information of multinarrowband Lamb waves with different carrier frequencies was fused using the geometric mean.
11
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