Results 171 to 180 of about 749,316 (193)

MULTI-DIMENSIONAL CMUT ARRAY WITH INTEGRATED BEAMFORMATION

The Journal of the Acoustical Society of America, 2014
To generate information representing a volume, co-arrays or synthetic transmit aperture process (72) is performed in one dimension and beamforming (68) is performed in another dimension. For example, a transmit aperture focuses in azimuth, but is unfocused or divergent in elevation. A multi-dimensional array (12) receives reflected echoes.
openaire   +1 more source

Capacitive micromachined ultrasonic transducer (CMUT) arrays for medical imaging

Microelectronics Journal, 2006
Capacitive micromachined ultrasonic transducers (CMUTs) bring the fabrication technology of standard integrated circuits into the field of ultrasound medical imaging. This unique property, combined with the inherent advantages of CMUTs in terms of increased bandwidth and suitability for new imaging modalities and high frequency applications, have ...
Alessandro Caronti, Giosuè Caliano, Riccardo Carotenuto, Alessandro Savoia, Massimo Pappalardo, Elena Cianci, Vittorio Foglietti   +6 more
openaire   +7 more sources

CMUT array modeling through free acoustic CMUT modes and analysis of the fluid CMUT interface through Fourier transform methods

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2005
A method for analyzing capacitive micromachined ultrasonic transducer (CMUT) arrays and arrays of elements composed of several CMUTs is proposed. It is based on a combination of a free acoustic mode description of an isolated CMUT, and the coupling of these modes to the fluid in which waves should be excited or detected through an impedance matrix that
openaire   +1 more source

CMUT-in-CMOS ultrasonic transducer arrays with on-chip electronics

TRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference, 2009
Integration of a 2D ultrasound transducer array with front-end signal conditioning electronics poses significant fabrication and packaging challenges due to the required number of elements and small element pitch. In this paper, we demonstrate a CMUT-in-CMOS approach that produces ultrasonic transducers and circuits on a single chip using a standard ...
X. Cheng, D. F. Lemmerhirt, O. D. Kripfgans, M. Zhang, C. Yang, C. A. Rich, J. B. Fowlkes   +6 more
openaire   +1 more source

Compressed sensing approach for CMUT sparse array in multi-element synthetic transmit aperture

Sensors and Actuators A: Physical, 2023
Xingling Shao, Yuhua Yang
exaly  

Fabrication and Characterization of a Wideband Low-Frequency CMUT Array for Air-Coupled Imaging

IEEE Sensors Journal, 2020
Lei Ye, Hui Zhang, Zhuochen Wang
exaly  

Assessing the Microfabrication-Related Variability of the Performance of CMUT Arrays

IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control, 2022
Monica La Mura, Alessandro Stuart Savoia, Alvise Bagolini   +2 more
exaly  

Fabrication of 2D Capacitive Micromachined Ultrasonic Transducer (CMUT) Arrays on Insulating Substrates With Through-Wafer Interconnects Using Sacrificial Release Process

Journal of Microelectromechanical Systems, 2020
Omer Oralkan, Zachary A Coutant, Xiao Zhang   +2 more
exaly  

CMUT array modeling through free acoustic CMUT modes and analysis of the fluid CMUT interface through Fourier transform methods.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2006
A method for analyzing capacitive micromachined ultrasonic transducer (CMUT) arrays and arrays of elements composed of several CMUTs is proposed. It is based on a combination of a free acoustic mode description of an isolated CMUT, and the coupling of these modes to the fluid in which waves should be excited or detected through an impedance matrix that
openaire   +1 more source

Electronic nose system based on a functionalized capacitive micromachined ultrasonic transducer (CMUT) array for selective detection of plant volatiles

Sensors and Actuators B: Chemical, 2021
Omer Oralkan, Fatih Erden, Erdem Sennik
exaly