Results 41 to 50 of about 749,316 (193)

Co-array optimization of CMUT arrays for Forward-Looking IVUS

2009 IEEE International Ultrasonics Symposium, 2009
The ring annular array structure is a preferred configuration for implementing Forward-Looking IVUS (FL-IVUS) catheters as it allows for volumetric imaging as well as use of a guidewire at the center. CMUT technology is promising for these arrays especially with the flexibility of locating array elements on the circular donut area efficiently.
Tekeş, Coşkun, Karaman, Mustafa, Değertekin, Fahrettin Levent   +2 more
openaire   +2 more sources

MOSAIC: A Scalable reconfigurable 2D array system for NDT [PDF]

, 2008
This paper documents the development of a scalable 2D array system, or Mosaic that can be targeted at a wide range of NDT applications by way of a reconfigurable tile that can be tessellated to form arrays of any size and shape.
Afroukh, F., Donald O. Thompson, L. Wang, D. R. S. Cumming, Dale E. Chimenti, J. Wallace, Wallace, J., Cumming, D.R.S., Wang, L., Cochran, S., Saillant, J.F., S. Triger, Saillant, J-F., S. Cochran, Triger, S., J. F. Saillant, F. Afroukh   +16 more
core   +1 more source

Design, Development, and Characterization of a Low Frequency CMUT-Based Anemometer

IEEE Access, 2021
The design fabrication and development of a 67.5 kHz capacitive micromachined ultrasonic transducer (CMUT) suited for Martian anemometry is presented in this paper.
Mayank B. Thacker, Arezoo Emadi, Douglas A. Buchanan   +2 more
doaj   +1 more source

Improved sparse domain super-resolution reconstruction algorithm based on CMUT

PLoS ONE, 2023
A novel breast ultrasound tomography system based on a circular array of capacitive micromechanical ultrasound transducers (CMUT) has broad application prospects.
Zhiqing Wei, Yanping Bai, Rong Cheng, Hongping Hu, Peng Wang, Wendong Zhang, Guojun Zhang   +6 more
doaj   +3 more sources

Advances in MEMS, Optical MEMS, and Nanophotonics Technologies for Volatile Organic Compound Detection and Applications. [PDF]

Small Sci
Volatile organic compounds (VOCs) are ubiquitous in natural and human environments, posing environmental and health risks. Recent advancements in micro‐electromechanical system and optical sensing offer new possibilities for VOC detection. This article reviews their progress, focusing on mechanisms, artificial intelligence enhancement, and applications
Li D, Zhou H, Ren Z, Lee C.
europepmc   +2 more sources

An Integrated Front-end Circuit Board for Air-Coupled CMUT Burst-Echo Imaging

Sensors, 2020
To conduct burst-echo imaging with air-coupled capacitive micromachined ultrasonic transducers (CMUTs) using the same elements in transmission and reception, this work proposes a dedicated and integrated front-end circuit board design to build an imaging
Lei Ye, Jian Li, Hui Zhang, Dongmei Liang, Zhuochen Wang   +4 more
doaj   +1 more source

High-Intensity Airborne CMUT Transmitter Array With Beam Steering [PDF]

Journal of Microelectromechanical Systems, 2020
A $2\times 2$ high-intensity CMUT transmit array that is capable of two-dimensional beam steering is presented. The device uses an ac drive voltage at half the ultrasound frequency without any dc bias, enabling the usage of the entire gap height. The device is designed using a large signal equivalent model approach.
Talha Masood Khan, Akif Sinan Taşdelen, Mehmet Yilmaz, Abdullah Atalar, Hayrettin Köymen   +4 more
openaire   +2 more sources

MOSAIC: An integrated ultrasonic 2-D array system [PDF]

, 2007
An investigation into the development of an ultrasound imaging system capable of customization for multiple applications via the tessellation of in-system programmable scalable modules, or tiles, is presented here.
D.R.S. Cumming, S. Triger, J.-F. Saillant, Saillant, J-F., J. Wallace, S. Cochran, Wallace, J., Cumming, D.R.S., Triger, S., Cochran, S.   +9 more
core   +1 more source

Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement

Sensors, 2016
This paper presents a new wind speed measurement method using a single capacitive micro-machined ultrasonic transducer (CMUT). The CMUT was arranged perpendicular to the direction of the wind flow, and a reflector was set up a short distance away, facing
Gia Thinh Bui, Yu-Tsung Jiang, Da-Chen Pang   +2 more
doaj   +1 more source

Bandwidth improvement in a cMUT array with mixed sized elements [PDF]

, 2005
Date of Conference: 18-21 Sept. 2005Conference name: IEEE Ultrasonics Symposium, 2005A capacitive micromachined ultrasonic transducer (cMUT) is typically fabricated by concatenation of several cMUT cells with identical physical dimensions.
Olcum, Selim, Şenlik, Muhammed N., Bayram, Can, Abdullah Atalar, Can Bayram, Muhammed N. Senlik, Selim Olcum, Atalar, Abdullah, M.N. Senlik, A. Atalar, C. Bayram, S. Olcum   +11 more
core   +1 more source