Results 21 to 30 of about 1,412,725 (216)
Optimization Design of CMUT Sensors with Broadband and High Sensitivity Characteristics Based on the Genetic Algorithm [PDF]
SensorsIn 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 +3 more sources
A Row-Column (RC) Addressed 2-D Capacitive Micromachined Ultrasonic Transducer (CMUT) Array on a Glass Substrate. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2021 This article presents a row-column (RC) capacitive micromachined ultrasonic transducer (CMUT) array fabricated using anodic bonding on a borosilicate glass substrate. This is shown to reduce the bottom electrode-to-substrate capacitive coupling.
Sanders JL +5 more
europepmc +2 more sources
CMUT array element in deep-collapse mode [PDF]
2011 IEEE International Ultrasonics Symposium, 2011 Collapse and deep-collapse mode of operations have boosted the pressure outputs of capacitive micromachined ul- trasonic transducers (CMUTs) considerably. In this work, we demonstrate a CMUT element operating in the deep-collapse mode with 25 V pulse excitation and without the effects of charge trapping.
Olcum, Selim +4 more
core +6 more sources
An Investigation of Silica Aerogel to Reduce Acoustic Crosstalk in CMUT Arrays [PDF]
Sensors, 2021 This paper presents a novel technique to reduce acoustic crosstalk in capacitive micromachined ultrasonic transducer (CMUT) arrays. The technique involves fabricating a thin layer of diisocyanate enhanced silica aerogel on the top surface of a CMUT array.
Varshitha Yashvanth, Sazzadur Chowdhury
doaj +3 more sources
Rayleigh–bloch waves in CMUT arrays [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2014 Using the small-signal electrical equivalent circuit of a capacitive micromachined ultrasonic transducer (CMUT) cell, along with the self and mutual radiation impedances of such cells, we present a computationally efficient method to predict the frequency response of a large CMUT element or array.
Atalar, A., Köymen H., Oğuz H.
openaire +5 more sources
Ex Vivo HIFU Experiments Using a $32 \times 32$ -Element CMUT Array. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2016 High-intensity focused ultrasound (HIFU) has been used as noninvasive treatment for various diseases. For these therapeutic applications, capacitive micromachined ultrasonic transducers (CMUTs) have advantages that make them potentially preferred ...
Yoon HS +9 more
europepmc +2 more sources
IEEE Sensors Journal, 2021 Volatile organic compounds (VOCs) are pervasive in the environment and their real-time continuous monitoring can facilitate better understanding of their effects on human health by combining environmental factors with physiological conditions.
Marzana Mantasha Mahmud +2 more
exaly +2 more sources
Design and Fabrication of Air-Coupled CMUT for Non-Contact Temperature Measurement Applications [PDF]
MicromachinesCompared 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
Pre-snapback mode operation of CMUT for enhanced acoustic performance [PDF]
Microsystems & NanoengineeringCapacitive micromachined ultrasonic transducers (CMUTs) offer advantages over traditional piezoelectric devices for ultrasound applications, including broader bandwidth, miniaturization, and electronics integration, but are limited by low acoustic ...
Seyoung Park +5 more
doaj +2 more sources
Volumetric elasticity imaging with a 2-D CMUT array. [PDF]
Ultrasound Med Biol, 2010 This article reports the use of a two-dimensional (2-D) capacitive micro-machined ultrasound transducer (CMUT) to acquire radio-frequency (RF) echo data from relatively large volumes of a simple ultrasound phantom to compare three-dimensional (3-D) elasticity imaging methods.
Fisher TG +7 more
europepmc +4 more sources