Alan C. Kubrusly
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View article: A Review of Recent Advances in Unidirectional Ultrasonic Guided Wave Techniques for Nondestructive Testing and Evaluation
A Review of Recent Advances in Unidirectional Ultrasonic Guided Wave Techniques for Nondestructive Testing and Evaluation Open
Unidirectional ultrasonic guided waves (UGWs) play a crucial role in the nondestructive testing and evaluation (NDT&E) domains, offering unique advantages in detecting material defects, evaluating structural integrity, and improving the ac…
View article: Comparison of Analytical, Semi-Analytical and Finite Element Methods for Oil Wells Defect Analysis
Comparison of Analytical, Semi-Analytical and Finite Element Methods for Oil Wells Defect Analysis Open
View article: A Simplified One-Parallel-Element Automatic Impedance-Matching Network Applied to Electromagnetic Acoustic Transducers Driving
A Simplified One-Parallel-Element Automatic Impedance-Matching Network Applied to Electromagnetic Acoustic Transducers Driving Open
Ultrasonic waves generated and received by electromagnetic acoustic transducers (EMATs) are advantageous in non-destructive testing, mainly due to the ability to operate without physical contact with the medium under test. Nevertheless, th…
View article: Ultrasonic Energy and Data Transfer through a Metal—Liquid Multi-Layer Channel Enhanced by Automatic Gain and Carrier Control
Ultrasonic Energy and Data Transfer through a Metal—Liquid Multi-Layer Channel Enhanced by Automatic Gain and Carrier Control Open
Ultrasonic communication and power transfer are attractive solutions when conventional electromagnetic-based or wired connections are unfeasible. Most ultrasonic communication applications concern a single-solid barrier. Nevertheless, some…
View article: Machine-Learning Based Evaluation of Eccentricity and Acoustical Impedance in Oil Well Using Vdl Data
Machine-Learning Based Evaluation of Eccentricity and Acoustical Impedance in Oil Well Using Vdl Data Open
View article: Visualização dos campos elétrico e magnético em guias de ondas retangulares
Visualização dos campos elétrico e magnético em guias de ondas retangulares Open
Guias de ondas são dispositivos que permitem a propagação de ondas eletromagnéticas direcionadas. As ondas guiadas ocorrem quando as equações de onda são atendidas respeitando as condições de contorno no guia. Além de sua aplicação prática…
View article: Improved Feature Extraction of Guided Wave Signals for Defect Detection in Welded Thermoplastic Composite Joints
Improved Feature Extraction of Guided Wave Signals for Defect Detection in Welded Thermoplastic Composite Joints Open
View article: Strain Sensitivity Enhancement of Broadband Ultrasonic Signals in Plates Using Spectral Phase Filtering
Strain Sensitivity Enhancement of Broadband Ultrasonic Signals in Plates Using Spectral Phase Filtering Open
The focused signal obtained by the time-reversal or the cross-correlation techniques of ultrasonic guided waves in plates changes when the medium is subject to strain, which can be used to monitor the medium strain level. In this paper, th…
View article: Machine Learning-Based Corrosion-Like Defect Estimation With Shear-Horizontal Guided Waves Improved by Mode Separation
Machine Learning-Based Corrosion-Like Defect Estimation With Shear-Horizontal Guided Waves Improved by Mode Separation Open
Shear Horizontal (SH) guided waves have been extensively used to estimate and detect defects in structures like plates and pipes. Depending on the frequency and plate thickness, more than one guided-wave mode propagates, which renders sign…
View article: Unidirectional Shear Horizontal Wave Generation With Side-Shifted Periodic Permanent Magnets Electromagnetic Acoustic Transducer
Unidirectional Shear Horizontal Wave Generation With Side-Shifted Periodic Permanent Magnets Electromagnetic Acoustic Transducer Open
Periodic permanent magnet (PPM) array electromagnetic acoustic transducers (EMATs) can efficiently generate and receive shear horizontal (SH) ultrasonic waves. Conventional PPM EMATs typically generate waves which simultaneously propagate …
View article: Real‐time performance assessment using fast interrupt request on a standard Linux kernel
Real‐time performance assessment using fast interrupt request on a standard Linux kernel Open
Summary This article presents the use of ARM's fast interrupt request (FIQ) to accomplish better jitter performance on real‐time drivers without using patches for real‐time extensions on the native Linux kernel code. Writing an FIQ interru…
View article: Ultrasonic Power and Data Transfer through Multiple Curved Layers Applied to Pipe Instrumentation
Ultrasonic Power and Data Transfer through Multiple Curved Layers Applied to Pipe Instrumentation Open
Ultrasonic power and data transfer through multilayered curved walls was investigated using numerical and experimental analysis. The acoustic channel used in this paper was formed by two concentric pipes filled with water, aiming for appli…
View article: Ultrasonic Power and Data Transfer Through Multiple Curved Layers Applied to Pipe Instrumentation
Ultrasonic Power and Data Transfer Through Multiple Curved Layers Applied to Pipe Instrumentation Open
Ultrasonic power and data transfer through multilayered curved walls is investigated using numerical and experimental analysis. The acoustic channel used in this paper is formed by two concentric pipes filled with water, aiming for applica…
View article: Application of an STFT-based filter in ultrasonic signals for strain monitoring
Application of an STFT-based filter in ultrasonic signals for strain monitoring Open
View article: Dataset on reflection and transmission coefficients of ultrasonic shear horizontal guided waves in plates with wall thinning
Dataset on reflection and transmission coefficients of ultrasonic shear horizontal guided waves in plates with wall thinning Open
This data article reports the data for reflection and transmission coefficients of the SH0 and SH1 ultrasonic guided waves modes due to their interaction with tapered wall thinning in aluminium plates. Several thinning depths and edge tape…
View article: Mechanical Strain Monitoring in Plates Using Wavelet Coherence Based Filter of Wideband Ultrasonic Guided Waves
Mechanical Strain Monitoring in Plates Using Wavelet Coherence Based Filter of Wideband Ultrasonic Guided Waves Open
Time reversal or cross-correlation technique can be applied to monitoring the strain in metallic plates by observing the decrease on the time reversal signal's peak. In order to analyze the sensitivity to mechanical strain, the wavelet coh…