Journal ArticleDOI
A Baseline and Vision of Ultrasonic Guided Wave Inspection Potential
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TLDR
In this article, the authors provide a vision of ultrasonic guided wave inspection potential as we move forward into the new millennium and provide a brief description of the sensor and software technology that will make ultrasonic guidance wave inspection commonplace in the next century.Abstract:
Ultrasonic guided wave inspection is expanding rapidly to many different areas of manufacturing and in-service inspection. The purpose of this paper is to provide a vision of ultrasonic guided wave inspection potential aswe move forward into the new millennium. An increased understanding of the basic physics and wave mechanics associated with guided wave inspection has led to an increase in practical nondestructive evaluation and inspection problems. Some fundamental concepts and a number of different applications that are currently being considered will be presented in the paper along with a brief description of the sensor and software technology that will make ultrasonic guided wave inspection commonplace in the next century.read more
Citations
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Journal ArticleDOI
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Book ChapterDOI
Simulation studies on a genetic algorithm based tomographic reconstruction using time-of-flight data from ultrasound transmission tomography
TL;DR: The proposed GA based reconstruction algorithm is described and the results for a number of cases are discussed, showing that the reconstruction times and number of unknowns bears a near quadratic relation enabling the prediction of reconstruction times when dealing with higher resolutions.
Dissertation
Méthodes d'échantillonnage appliquées à l'imagerie de défauts dans un guide d'ondes élastiques
TL;DR: In this article, a strategie choisie repose sur a formulation modale and multi-frequentielle of the Linear Sampling Method, specifique aux guides d'ondes, which permet une regularisation efficace and de nature physique du probleme inverse, which est par nature mal pose.
Patent
Active Waveguide Excitation and Compensation
TL;DR: In this paper, an environmental condition is measured with a sensor including a wire having an ultrasonic signal transmission characteristic that varies in response to the environmental condition by sensing ultrasonic energy propagated through the wire using multiple types of propagation.
Proceedings ArticleDOI
Characterization of a Flexible Piezopolymer-based Interdigital Transducer for Selective Excitation of Ultrasonic Guided Waves
TL;DR: In this article, a flexible piezopolymer-based interdigital transducers (IDT) was designed and characterized using a 3D Laser Doppler Vibrometer (3D LDV) in the air to identify and analyze the IDT's vibration modes.
References
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Book
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TL;DR: In this article, the authors apply the material developed in the Volume One to various boundary value problems (reflection and refraction at plane surfaces, composite media, waveguides and resonators).
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TL;DR: In this article, a comprehensive study of elastic wave propagation in solids is presented, ranging from the theory of waves and vibrations in strings to the three-dimensional theory of elastic waves in thick plates.
Book
Ultrasonic Waves in Solid Media
TL;DR: In this article, the theory of elasticity was introduced and basic formulas and concepts in complex variables in the theory and application of wave propagation were discussed. But the authors did not consider the effects of wave scattering on the wave propagation experiments.