Results 71 to 80 of about 2,164 (196)

Optimizing CMUT geometry for high power [PDF]

open access: yes, 2010
Capacitive micromachined ultrasonic transducers (CMUTs) have demonstrated various advantages over piezoelectric transducers. However, current CMUT designs produce low output pressures with high harmonic distortions.
Köymen, Hayrettin   +6 more
core   +1 more source

Encapsulation of Capacitive Micromachined Ultrasonic Transducers (CMUTs) for the Acoustic Communication between Medical Implants

open access: yesSensors, 2021
The aim of this work was to extend conventional medical implants by the possibility of communication between them. For reasons of data security and transmitting distances, this communication should be realized using ultrasound, which is generated and ...
Jorge Oevermann   +2 more
doaj   +1 more source

Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions

open access: yesAdvanced Materials, Volume 37, Issue 23, June 12, 2025.
Implantable devices significantly enhance healthcare but are limited by battery life. Ultrasound power transfer technology offers a promising solution for sustainable operation. This review addresses gaps in current research, particularly in sound field analysis and energy efficiency optimization.
Yi Zheng   +6 more
wiley   +1 more source

Capacitive micromachined ultrasonic transducer (CMUT) with graphene membrane

open access: yes, 2016
2016 IEEE International Ultrasonics Symposium, IUS 2016, France, 18-21 September 2016This paper presents fabrication methods using graphene as a membrane that was thermally bonded on top of the CMUT cavity formed by patterned photoresist.
Chong, PF   +5 more
core   +1 more source

Breast Acoustic Parameter Reconstruction Method Based on Capacitive Micromachined Ultrasonic Transducer Array

open access: yesMicromachines, 2021
Ultrasound computed tomography (USCT) systems based on capacitive micromachined ultrasonic transducer (CMUT) arrays have a wide range of application prospects.
Yu Pei   +3 more
doaj   +1 more source

The Role of Silicon Technology in Organ‐On‐Chip: Current Status and Future Perspective

open access: yesAdvanced Materials Technologies, Volume 10, Issue 9, May 6, 2025.
This review explores the potential of silicon micro‐nanofabrication technologies in advancing organ‐on‐chip systems. The integration of actuation and sensing modalities, highlight emerging technologies is discussed for combining silicon‐based and polymer‐based components, and emphasize the need for robust, high‐throughput, and customizable organ‐on ...
Frøydis Sved Skottvoll   +2 more
wiley   +1 more source

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

open access: yes, 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   +7 more
core   +1 more source

Wearable Ultrasound Devices for Biomedical Applications

open access: yesFlexTech, Volume 1, Issue 1, Page 35-43, March 2025.
ABSTRACT Wearable devices possess excellent flexibility and can conform to irregular surfaces, extensively changing human healthcare fields. Ultrasonic technology, with its extensive penetration depth, nondestructive nature, and versatile functionalities, has been widely applied in the diagnosis and treatment of various diseases.
Muyao Wang   +3 more
wiley   +1 more source

Modeling and measurements of CMUTs with square anisotropic plates [PDF]

open access: yes2013 IEEE International Ultrasonics Symposium (IUS), 2013
The conventional method of modeling CMUTs use the isotropic plate equation to calculate the deflection, leading to deviations from FEM simulations including anisotropic effects of around 10% in center deflection. In this paper, the deflection is found for square plates using the full anisotropic plate equation and the Galerkin method.
la Cour, Mette Funding   +6 more
openaire   +1 more source

Delay Line Separation of CMUT Elements

open access: yes, 2020
This paper presents a novel fabrication design for capacitive micromachined ultrasonic transducers (CMUT) that utilizes a designed delay line in the silicon substrate for element separation.
Engholm, Mathias   +9 more
core   +1 more source

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