Journal ArticleDOI
Beamforming array techniques for acoustic emission monitoring of large concrete structures
TLDR
In this paper, a beamforming-based acoustic emission (AE) analysis was proposed for field applications on large plate-like reinforced concrete structures, such as walls and bridge decks.About:
This article is published in Journal of Sound and Vibration.The article was published on 2010-06-07. It has received 139 citations till now. The article focuses on the topics: Sensor array & Beamforming.read more
Citations
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Journal ArticleDOI
Ultrasonic testing of materials: Josef and Herbert Krautkramer Springer-Verlag Publishing Company, Berlin, Heidelberg, New York (1975) 669 pp, $63.00
Journal ArticleDOI
Acoustic source localization.
TL;DR: After reviewing various techniques the paper concludes which source localization technique should be most effective for what type of structure and what the current research needs are.
Journal ArticleDOI
Acoustic source localization in anisotropic plates.
TL;DR: For the first time a technique is proposed to locate the acoustic source in large anisotropic plates with the help of only six sensors without knowing the direction dependent velocity profile in the plate.
Journal ArticleDOI
Generation of acoustic self-bending and bottle beams by phase engineering
Peng Zhang,Tongcang Li,Jie Zhu,Xue-Feng Zhu,Sui Yang,Yuan Wang,Xiaobo Yin,Xiaobo Yin,Xiang Zhang,Xiang Zhang +9 more
TL;DR: The generation of acoustic bottle beams in homogeneous space without using metamaterials is demonstrated, where the sound energy flows through a three-dimensional curved shell in air leaving a close-to-zero pressure region in the middle, exhibiting the capability of circumventing obstacles.
Journal ArticleDOI
Acoustic emission source location in complex structures using full automatic delta T mapping technique
Safaa Kh. Al-Jumaili,Safaa Kh. Al-Jumaili,Matthew R. Pearson,Karen Margaret Holford,Mark Jonathan Eaton,Rhys Pullin +5 more
TL;DR: In this article, a new and improved fully automatic delta T mapping technique is presented, where a clustering algorithm is used to automatically identify and select the highly correlated events at each grid point whilst the minimum difference approach is employed to determine the source location.
References
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Book
Quantitative seismology : theory and methods
Keiiti Aki,Paul Richards +1 more
TL;DR: This work has here attempted to give a unified treatment of those methods of seismology that are currently used in interpreting actual data and develops the theory of seismic-wave propagation in realistic Earth models.
Journal ArticleDOI
Two decades of array signal processing research: the parametric approach
Hamid Krim,Mats Viberg +1 more
TL;DR: The article consists of background material and of the basic problem formulation, and introduces spectral-based algorithmic solutions to the signal parameter estimation problem and contrast these suboptimal solutions to parametric methods.
Journal ArticleDOI
Beamforming: a versatile approach to spatial filtering
B.D. Van Veen,K.M. Buckley +1 more
TL;DR: An overview of beamforming from a signal-processing perspective is provided, with an emphasis on recent research.
Book
Array Signal Processing: Concepts and Techniques
Don H. Johnson,Dan E. Dudgeon +1 more
TL;DR: This chapter discusses how signals in Space and Time and apertures and Arrays affect Array Processing and the role that symbols play in this processing.
Book
Ultrasonic Testing of Materials
TL;DR: In this article, the authors describe the physical fundamentals of ultrasonics and materials up to the most sophisticated methods for nondestructive testing of solid material using ultrasonic waves for defects such as cavities, nonbonding, and strength variations.