Results 31 to 40 of about 2,164 (196)

Fabrication and Integration of CMUT Sensors

open access: yes, 2017
Capacitive micromachined ultrasound transducers (CMUTs) are a promising replacement technology for piezoelectric composite transducers, as they offer a more flexible architecture, wider signal bandwidth, and improved impedance matching between the sensor and the sensing medium.
Greenlay, Benjamin A
openaire   +2 more sources

Experimental Characterization of an Embossed Capacitive Micromachined Ultrasonic Transducer Cell

open access: yesMicromachines, 2020
Capacitive Micromachined Ultrasonic Transducer (CMUT) is a promising ultrasonic transducer in medical diagnosis and therapeutic applications that demand a high output pressure.
Yuanyu Yu   +8 more
doaj   +1 more source

Modelling of CMUTs with anisotropic plates [PDF]

open access: yes2012 IEEE International Ultrasonics Symposium, 2012
Traditionally, CMUTs are modelled using the isotropic plate equation and this leads to deviations between analytical calculations and FEM simulations. In this paper, the deflection profile and material parameters are calculated using the anisotropic plate equation.
la Cour, Mette Funding   +3 more
openaire   +2 more sources

Radiation Impedance of Rectangular CMUTs. [PDF]

open access: yesSensors (Basel)
Recently, capacitive micromachined ultrasound transducers (CMUTs) with long rectangular membranes have demonstrated performance advantages over conventional piezoelectric transducers; however, modeling these CMUT geometries has been limited to computationally burdensome numerical methods.
Khorassany S   +3 more
europepmc   +6 more sources

Investigation on Design Theory and Performance Analysis of Vacuum Capacitive Micromachined Ultrasonic Transducer

open access: yesMicromachines, 2021
The capacitive micromachined ultrasonic transducer (CMUT), as a new acoustic-electric conversion element, has a promising application prospect. In this paper, the structure of the vacuum capacitive micromachined ultrasonic transducer is presented, and ...
Xiao Huang, Hongliang Wang, Lijun Yu
doaj   +1 more source

Design of a hexagonal air-coupled capacitive micromachined ultrasonic transducer for air parametric array

open access: yesNanotechnology and Precision Engineering, 2021
An air parametric array can generate a highly directional beam of audible sound in air, which has a wide range of applications in targeted audio delivery.
Xiaoli Zhang, Hui Zhang, Dachao Li
doaj   +1 more source

A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array

open access: yesMicromachines, 2021
Capacitive micromachined ultrasonic transducer (CMUT) is an ultrasonic transducer based on the microelectromechanical system (MEMS). CMUT elements are easily made into a high-density array, which will increase the hardware complexity.
Tian Zhang   +6 more
doaj   +1 more source

Trasduttori CMUT per applicazioni biomediche [PDF]

open access: yes, 2022
Il trasduttore ultrasonico "stato d’arte" è il trasduttore piezoelettrico. Negli ultimi due decenni particolare attenzione si è posta sul trasduttore ultrasonico capacitivo, CMUT (Capacitive Micromachined Ultrasonic Transducer)che impiega la tecnologia
Kabashi, Alketa
core  

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

open access: yesSmall 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

3D cone-beam breast ultrasonic tomography imaging for capacitive micromachined ultrasonic transducer cylindrical array [PDF]

open access: yesJASA Express Letters, 2021
In this paper, a 3D cone-beam ultrasonic transmission tomography method for capacitive micromachined ultrasonic transducer (CMUT) cylindrical phased array was proposed.
Yu Pei   +6 more
doaj   +1 more source

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