Results 101 to 110 of about 749,316 (193)

Custom integrated circuit design for ultrasonic therapeutic CMUT array

Microsystem Technologies, 2014
This paper presents the design of a highly flexible and programmable transmit beam-former ASIC using a high voltage (HV) 0.35 μm CMOS technology to be flip-chip bonded to a 4 × 4 CMUT array for ultrasound therapeutic applications. However, proposed IC can be used as a transmitter circuitry in color Doppler 3D imaging applications. In our proposed chip,
Maadi, Mohammad, Bayram, Baris
openaire   +3 more sources

Design of a front-end integrated circuit for 3D acoustic imaging using 2D CMUT arrays

, 2005
Integration of front-end electronics with 2D capacitive micromachined ultrasonic transducer (CMUT) arrays has been a challenging issue due to the small element size and large channel count.
Karaman, Mustafa, Çiçek, İhsan, Bozkurt, Ayhan   +2 more
core   +1 more source

Airborne Capacitive Micromachined Ultrasonic Transducers in Pitch–Catch Mode: Modeling and Characterization of the Measurement Chain

IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control
Capacitive Micromachined Ultrasonic Transducers (CMUTs) feature broadband operation as well as high sensitivity, showing promise for applications such as pressure sensing, ultrasonic imaging, and wireless power transfer.
Yilihamu Abudujiasuer, Etienne Lemaire, Flavien Barcella, Isabelle Dufour, Dominique Certon   +4 more
doaj   +1 more source

Application of Synchronized Swept-Sine Technique in CMUT Characterization Using Laser-Doppler Vibrometry

IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control
Capacitive Micromachined Ultrasonic Transducers (CMUTs) provide a path to mass-produced cost-efficient transducers for clinical imaging and wearables. However, their inherent nonlinearities, especially at high excitation voltages, can degrade performance
Tonnis Trittler, Soren Koble, Julian Kober, Marco Kircher, Johannes Fankhanel, Cornelius Kuhnol, Paul-Henry Franz Koop, Richard Nauber, Henning Heuer, Moritz Herzog   +9 more
doaj   +1 more source

High-Frequency Coupled-Resonator CMUT with Stepped Cavity for Enhanced Sensitivity and Bandwidth in Acoustic Emission Detection

Metrology
Acoustic emission (AE) monitoring in metal additive manufacturing (AM) requires compact sensors capable of high-frequency operation, broad bandwidth, and high sensitivity.
Sulaiman Mohaidat, Mohammad Okour, Mutaz Al Fayad, Fadi Alsaleem   +3 more
doaj   +1 more source

Forward-Looking Intracardiac Ultrasound Imaging Using a 1-D Cmut Array Integrated With Custom Front-End Electronics

, 2008
Minimally invasive catheter-based electrophysiological (EP) interventions are becoming a standard procedure in diagnosis and treatment of cardiac arrhythmias.
Khuri-Yakub, B. T., Ergun, A. S., Wygant, I. O., Nikoozadeh, A., Oralkan, O., Stephens, D. N., Lin, D. S.   +6 more
core   +1 more source

Dual electrode capacitive micromachined ultrasonic transducer array for 1-D intracardiac echocardiography (ICE)

, 2007
We designed and fabricated a 64 element 1-D linear dual electrode Capacitive Micromachined Ultrasonic Transducer (CMUT) array operating at 9.5 MHz for Intracardiac Echocardiography (ICE).
Karaman, Mustafa, Güldiken, Rasim Oytun, Zahorian, Jaime S., Değertekin, Fahrettin Levent   +3 more
core   +1 more source

Design, Fabrication, and Characterization of Capacitive Micromachined Ultrasonic Transducers for Transcranial, Multifocus Neurostimulation

Micromachines
In a recent study using 3-D fullwave simulations, it was shown for a nonhuman primate model that a helmet-shaped 3D array of 128 transducer elements can be assembled for neurostimulation in an optimized configuration with the accommodation of an imaging ...
Tamzid Ibn Minhaj, Muhammetgeldi Annayev, Oluwafemi J. Adelegan, Ali Önder Biliroğlu, Feysel Yalçın Yamaner, Ömer Oralkan   +5 more
doaj   +1 more source

Multiphysical model of CMUT array based on modal decomposition and the Rayleigh integral

Sensing and Bio-Sensing Research
There is a high number of modeling techniques for calculation of characteristics of capacitive micromachined ultrasound transducers. Very few of them are capable of calculation of the acoustic field, especially when the number of cells in the array is ...
A.E. Biriukov, A.M. Korsunsky
doaj   +1 more source

CMUT sensors based on circular membranes array for SHM applications

, 2019
International audienceA MEMS sensor dedicated to SHM applications is presented. The MEMS is made of a Capacitive Micromachined Ultrasonic Transducer (CMUT) chip composed of circular membranes array.
Le Moal, Patrice, Butaud, Pauline, Placet, Vincent, Bourbon, Gilles, Verdin, Benoît, Ramasso, Emmanuel, Joseph, Eric   +6 more
core