Interface Microstructures and Bond Formation in Ultrasonic Consolidation [PDF]
, 2007 The quality of ultrasonically consolidated parts critically depends on the bond quality between individual metal foils. This necessitates a detailed understanding of interface microstructures and ultrasonic bonding mechanism.
Adams, B. L. +5 more
core +1 more source
Monolithic ultrasound fingerprint sensor. [PDF]
, 2017 This paper presents a 591×438-DPI ultrasonic fingerprint sensor. The sensor is based on a piezoelectric micromachined ultrasonic transducer (PMUT) array that is bonded at wafer-level to complementary metal oxide semiconductor (CMOS) signal processing ...
Boser, Bernhard E +7 more
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Discrete Imaging Models for Three-Dimensional Optoacoustic Tomography using Radially Symmetric Expansion Functions [PDF]
, 2014 Optoacoustic tomography (OAT), also known as photoacoustic tomography, is an emerging computed biomedical imaging modality that exploits optical contrast and ultrasonic detection principles.
Er Oraevsky +5 more
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An annular array with fiber composite microstructure for far field NDT imaging applications [PDF]
, 2010 This paper describes the design and fabrication of a reduced element count annular array for far field NDT imaging applications, built with a random fiber piezoelectric composite microstructure.
Dziewierz, J. +5 more
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A match coefficient approach for damage imaging in structural components by ultrasonic synthetic aperture focus [PDF]
, 2017 Ultrasonic Synthetic Aperture Focus (SAF) techniques are commonly used to image structural defects. In this paper, a variation of SAF based on ideas borrowed from Matched Field Processing (MFP) is evaluated to reduce artifacts and sidelobes of the ...
Lanza di Scalea, F. +4 more
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A Novel Relative Position Estimation Method for Capsule Robot Moving in Gastrointestinal Tract
Sensors, 2019 Recently, a variety of positioning and tracking methods have been proposed for capsule robots moving in the gastrointestinal (GI) tract to provide real-time unobstructed spatial pose results.
Min Wang +4 more
doaj +1 more source
Theoretical study of Acousto-optical coherence tomography using random phase jumps on US and light [PDF]
, 2011 Acousto-Optical Coherence Tomography (AOCT) is variant of Acousto Optic Imaging (called also ultrasonic modulation imaging) that makes possible to get z resolution with acoustic and optic Continuous Wave (CW) beams.
A. C. Boccara +38 more
core +5 more sources
Experimental investigation of inter-element isolation in a medical array transducer at various manufacturing stages [PDF]
, 2016 This work presents the experimental investigation of vibration maps of a linear array transducer with 192 piezoelements by means of a laser Doppler vibrometer at various manufacturing finishing steps in air and in water.
Bini, Fabiano +2 more
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Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review
Applied Sciences, 2022 An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically.
Qian Xu, Haitao Wang
doaj +1 more source
International Journal of Clinical Practice, 2022 Objective. This study aimed to explore the early diagnosis of abnormal left ventricular systolic function of rare pathogenic titin (TTN) mutation gene carriers in familial hypertrophic cardiomyopathy (FHCM) by three-dimensional speckle tracking ...
Xiang-hong Luo +4 more
doaj +1 more source