Results 1 to 10 of about 2,164 (196)

Ultrasound‐On‐Chip With Semiconductor Silicon Chip Array for Transcutaneous Salivary Gland Injections: A Pilot Cadaver Study [PDF]

open access: yesLaryngoscope Investigative Otolaryngology
Objective Ultrasound (US) is a well‐established imaging modality for the evaluation of head and neck anatomy. The Butterfly iQ is a handheld ultrasound device that uses a semiconductor silicon chip array (capacitive micromachined ultrasound transducers ...
David Y. Goldrich   +4 more
doaj   +3 more sources

Structural Optimization Design of the Dual-Layer CMUT with Low Power Consumption and High Ultrasonic Reception Performance [PDF]

open access: yesMicromachines
Capacitive micromachined ultrasonic transducers (CMUTs) have been widely applied in fields such as air-coupled ultrasonic nondestructive testing, gesture recognition, and 3D imaging. However, most current CMUTs struggle to simultaneously achieve both low
Jie Li   +9 more
doaj   +2 more sources

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

open access: yesMicromachines
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   +5 more
doaj   +2 more sources

Dual-mode CMUT structure sensor for high hydrostatic pressure measurements: conventional and collapse modes [PDF]

open access: yesMicrosystems & Nanoengineering
Capacitive Micromachined Ultrasonic Transducer (CMUT) are widely utilized in fields such as medical imaging, non-destructive testing, and chemical sensing for active sensing applications.
Zhaodong Li   +6 more
doaj   +2 more sources

Electromechanical Impedance Response in CMUT-Based Gas Sensors Exposed to Volatile Organic Compounds [PDF]

open access: yesSensors
A capacitive micromachined ultrasonic transducer (CMUT) was engineered and functionalized with either zeolitic imidazolate framework-8 (ZIF-8) dispersed in an AZ1512HS photoresist matrix or with graphene oxide (GOx) to operate as a gravimetric sensor for
Dovydas Barauskas   +3 more
doaj   +2 more sources

Optimization Design of CMUT Sensors with Broadband and High Sensitivity Characteristics Based on the Genetic Algorithm [PDF]

open access: yesSensors
In this study, we propose a method for optimizing the design of CMUT sensors using genetic algorithms. Existing CMUT sensors face frequency response and sensitivity limitations, necessitating optimization to enhance their sensing performance. Traditional
Sai Zhang   +5 more
doaj   +2 more sources

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

open access: yesMicromachines
This paper presents a miniaturized and highly accurate saltwater concentration monitoring system based on Capacitive Micromachined Ultrasonic Transducer (CMUT) array technology.
Hanchi Chai   +9 more
doaj   +2 more sources

Design and Fabrication of Multi-Frequency and Low-Quality-Factor Capacitive Micromachined Ultrasonic Transducers [PDF]

open access: yesMicromachines
Capacitive micromachined ultrasonic transducers (CMUTs) have been developed for air-coupled applications to address key challenges such as noise, prolonged ringing, and side-lobe interference. This study introduces an optimized CMUT design that leverages
Amirhossein Moshrefi   +3 more
doaj   +2 more sources

Wireless ultrasonic power transfer using a pre-charged CMUT structure with a built-in charge storage capacitor [PDF]

open access: yesMicrosystems & Nanoengineering
Capacitive micromachined ultrasonic transducer (CMUT) technology is a potential candidate to implement an ultrasonic power receiver for implantable medical devices (IMDs) because CMUT technology employs photolithography-based microfabrication techniques ...
Muhammetgeldi Annayev   +2 more
doaj   +2 more sources

An Analysis Method for Capacitive Micromachined Ultrasound Transducer (CMUT) Energy Conversion during Large Signal Operation

open access: yesSensors, 2019
With Capacitive Micromachined Ultrasound Transducers (CMUTs) increasingly being used for high intensity, large signal ultrasound applications and several drive methods being proposed, the efficiency of these devices in this operation regime have not been
Amirabbas Pirouz, F. Levent Degertekin
doaj   +3 more sources

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