Journal ArticleDOI
Human uses of ultrasound: ancient and modern.
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TLDR
A number of different ultrasonic systems can be categorized into one of three key generic approaches: pulse-echo exploration, intensity mapping, and phase-amplitude measurement, and each of these categories can be combined with the others to produce hybrid systems for which an unambiguous categorization is difficult or impossible.About:
This article is published in Ultrasonics.The article was published on 2000-03-01. It has received 73 citations till now.read more
Citations
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Journal ArticleDOI
Extended high-frame rate imaging method with limited-diffraction beams
Jiqi Cheng,Jian-yu Lu +1 more
TL;DR: The extended theory of high-frame rate imaging theory is extended to include explicitly various transmission schemes such as multiple limited-diffraction array beams and steered plane waves, and shows that image resolution and contrast are increased over a large field of view.
Patent
System and method providing arc welding training in a real-time simulated virtual reality environment using real-time weld puddle feedback
David Anthony Zboray,Matthew Alan Bennett,Matthew Wayne Wallace,Jeremiah Hennessey,Yvette Christine Dudac,Zachary Steven Lenker,Andrew Paul Lundell,Paul Dana,Eric A. Preisz +8 more
TL;DR: In this article, a real-time virtual reality welding system including a programmable processor-based subsystem, a spatial tracker operatively connected to the PLC, at least one mock welding tool capable of being spatially tracked by the spatial tracker, and at least a display device operating on the programmable PLC.
Patent
System for tracking and analyzing welding activity
TL;DR: In this article, a system and a method for tracking and analyzing welding activity is presented, where dynamic spatial properties of a welding tool are sensed during a welding process producing a weld.
Patent
Welding training system
TL;DR: In this article, a system for training welders that includes a data generating component, a data capturing component and a data processing and visualization component is presented, which operates in real time and derives data from an actual manually-executed weld and further includes a weld process-specific jig, a calibration block positioned on the jig and at least one target mounted on the welding gun for providing multidimensional position and orientation feedback.
Patent
Systems, methods, and apparatuses for monitoring weld quality
TL;DR: In this paper, an arc welder including an integrated monitor is disclosed, and the monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding processes or applications, and deriving optimal welding settings to be used as pre-sets for different welding process or applications.
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Book ChapterDOI
A History of Acoustic Imaging
TL;DR: In this article, the authors present some historical highlights of the fascinating progress in this work, including intensity-mapping and phase-amplitude systems, which have become the bases for acoustic imaging.