Results 21 to 30 of about 324,266 (197)

A Review on Analytical Modeling for Collapse Mode Capacitive Micromachined Ultrasonic Transducer of the Collapse Voltage and the Static Membrane Deflections [PDF]

Micromachines, 2021
Analytical modeling of capacitive micromachined ultrasonic transducer (CMUT) is one of the commonly used modeling methods and has the advantages of intuitive understanding of the physics of CMUTs and convergent when modeling of collapse mode CMUT.
JiuJiang Wang, Xin Liu, YuanYu Yu, Yao Li, ChingHsiang Cheng, Shuang Zhang, PengUn Mak, MangI Vai, SioHang Pun   +8 more
doaj   +2 more sources

Patch-type capacitive micromachined ultrasonic transducer for ultrasonic power and data transfer [PDF]

Microsystems & Nanoengineering
Ultrasonic power and data transfer is a promising technology for implantable medical devices because of its non-invasiveness, deep penetration depth, and potential for a high-power transmission rate with a low specific absorption rate.
Chaerin Oh, Young-Min Kim, Taemin Lee, Sang-Mok Lee, Joontaek Jung, Hyeon-Min Bae, Chul Kim, Hyunjoo J. Lee   +7 more
doaj   +2 more sources

Capacitive Micromachined Ultrasonic Transducers (CMUTs) for Underwater Imaging Applications

Sensors, 2015
A capacitive micromachined ultrasonic transducer structure for use in underwater imaging is designed, fabricated and tested in this paper. In this structure, a silicon dioxide insulation layer is inserted between the top electrodes and the vibration ...
Jinlong Song, Chenyang Xue, Changde He, Rui Zhang, Linfeng Mu, Juan Cui, Jing Miao, Yuan Liu, Wendong Zhang   +8 more
doaj   +2 more sources

Investigation of New Accelerometer Based on Capacitive Micromachined Ultrasonic Transducer (CMUT) with Ring-Perforation Membrane [PDF]

Micromachines
Capacitive micromachined ultrasonic transducer (CMUT) has been widely studied due to its excellent resonance characteristics and array integration. This paper presents the first study of the CMUT electrostatic stiffness resonant accelerometer. To improve
Luhao Gou, Hongliang Wang, Qi Ding, Yulong Liu, Runze Yang, Feng Zhang, Pengcheng Zhang, Gang Cao   +7 more
doaj   +2 more sources

Methylated Poly(ethylene)imine Modified Capacitive Micromachined Ultrasonic Transducer for Measurements of CO₂ and SO₂ in Their Mixtures [PDF]

Sensors, 2019
A gravimetric gas detection device based on surface functionalized Capacitive Micromachined Ultrasound Transducers (CMUTs) was designed, fabricated and tested for detection of carbon dioxide (CO2) and sulfur dioxide (SO2) mixtures in nitrogen.
Dovydas Barauskas, Donatas Pelenis, Gailius Vanagas, Darius Viržonis, Jonas Baltrušaitis   +4 more
doaj   +2 more sources

Single-Shot Waterless Low-Profile Photoacoustic System: Near-Field Volumetric Imaging In Vivo for Blood Vessels Based on Capacitive Micromachined Ultrasonic Transducer (CMUT) [PDF]

Sensors, 2019
Intensive research on photoacoustics (PA) for imaging of the living human body, including the skin, vessels, and tumors, has recently been conducted. We propose a PA measurement system based on a capacitive micromachined ultrasonic transducer (CMUT) with
Won Young Choi, Young Hun Kim, Hyeong Geun Jo, Joo Young Pyun, Soo Won Kwon, Kwan Kyu Park   +5 more
doaj   +2 more sources

High-Precision Salt Concentration Detection Using a CMUT Array with Temperature Compensation [PDF]

Micromachines
This paper presents a miniaturized and highly accurate saltwater concentration monitoring system based on Capacitive Micromachined Ultrasonic Transducer (CMUT) array technology.
Hanchi Chai, Changde He, Mengke Luo, Guojun Zhang, Hongliang Wang, Renxin Wang, Yuhua Yang, Jiangong Cui, Wendong Zhang, Licheng Jia   +9 more
doaj   +2 more sources

A Safe and Portable CMUT Array Ultrasonic System for Bubble Sizing in Industrial Silicone Sealing Rings [PDF]

Micromachines
To address the need for bubble detection in industrial silicone sealing rings, this paper presents a compact non-invasive ultrasonic monitoring system based on a capacitive micromachined ultrasonic transducer (CMUT) array, aiming to overcome the ...
Changde He, Shuo Liu, Hanchi Chai, Dandan Li, Chengrui Liu, Wanjia Gao, Yuhua Yang, Licheng Jia, Guojun Zhang, Renxin Wang, Jiangong Cui, Wendong Zhang   +11 more
doaj   +2 more sources

Design and Fabrication of Air-Coupled CMUT for Non-Contact Temperature Measurement Applications [PDF]

Micromachines
Compared with traditional piezoelectric transducers, Capacitive Micromachined Ultrasonic Transducers (CMUTs) have advantages such as better impedance matching with air, smaller size, lighter weight, higher sensitivity, and ease of array formation ...
Xiaobo Rui, Yongshuai Ma, Chenghao He, Chi Zhang, Zhuochen Wang, Hui Zhang   +5 more
doaj   +2 more sources

High-Performance Capacitive Ultrasonic Transducer for Non-Destructive Testing of Concrete Compressive Strength [PDF]

Sensors
Ultrasonic non-destructive testing is indispensable for assessing the compressive strength of concrete and is widely utilized in concrete structure health monitoring.
Wangyang Zhang, Jiaqian Yang, Lei Ren, Hanjie Dou, Xianglong Chen, Haoliang Jia, Yuchen Mao, Jixuan Zhang, Wanyu Xu, Hong Zhou, Xiaojing Mu   +10 more
doaj   +2 more sources