Results 1 to 10 of about 132,129 (183)

FPCB as an Acoustic Matching Layer for 1D Linear Ultrasound Transducer Arrays [PDF]

open access: yesSensors, 2022
An acoustic matching layer is an essential component of an ultrasound transducer to achieve maximum ultrasound transmission efficiency. Here, we develop a flexible printed circuit board (FPCB) with a composite structure consisting of multiple polyimide ...
Taemin Lee   +6 more
doaj   +2 more sources

Dual-frequency piezoelectric micromachined ultrasound transducer based on polarization switching in ferroelectric thin films [PDF]

open access: yesMicrosystems & Nanoengineering, 2023
Due to its additional frequency response, dual-frequency ultrasound has advantages over conventional ultrasound, which operates at a specific frequency band.
Jin Soo Park   +7 more
doaj   +2 more sources

An Inverse Class-E Power Amplifier for Ultrasound Transducer [PDF]

open access: yesSensors, 2023
An inverse Class-E power amplifier was designed for an ultrasound transducer. The proposed inverse Class-E power amplifier can be useful because of the low series inductance values used in the output matching network that helps to reduce signal ...
Hojong Choi
doaj   +2 more sources

Recent Advancements in Ultrasound Transducer: From Material Strategies to Biomedical Applications [PDF]

open access: yesBME Frontiers, 2022
Ultrasound is extensively studied for biomedical engineering applications. As the core part of the ultrasonic system, the ultrasound transducer plays a significant role. For the purpose of meeting the requirement of precision medicine, the main challenge
Jiapu Li   +4 more
doaj   +2 more sources

Therapeutic ultrasound transducer technology and monitoring techniques: a review with clinical examples [PDF]

open access: yesInternational Journal of Hyperthermia
The exponential growth of therapeutic ultrasound applications demonstrates the power of the technology to leverage the combinations of transducer technology and treatment monitoring techniques to effectively control the preferred bioeffect to elicit the ...
Maxime Lafond   +2 more
doaj   +2 more sources

Recent Advances in Transducers for Intravascular Ultrasound (IVUS) Imaging

open access: yesSensors, 2021
As a well-known medical imaging methodology, intravascular ultrasound (IVUS) imaging plays a critical role in diagnosis, treatment guidance and post-treatment assessment of coronary artery diseases.
Chang Peng   +4 more
doaj   +1 more source

Novel Bandwidth Expander Supported Power Amplifier for Wideband Ultrasound Transducer Devices

open access: yesSensors, 2021
Ultrasound transducer devices have their own frequency ranges, depending on the applications and specifications, due to penetration depth, sensitivity, and image resolution.
Kyeongjin Kim, Hojong Choi
doaj   +1 more source

Phase Optimization for Multipoint Haptic Feedback Based on Ultrasound Array

open access: yesSensors, 2022
Ultrasound-based haptic feedback is a potential technology for human–computer interaction (HCI) with the advantages of a low cost, low power consumption and a controlled force.
Zhili Long   +4 more
doaj   +1 more source

Venting in the comparative study of flexural ultrasonic transducers to improve resilience at elevated environmental pressure levels [PDF]

open access: yes, 2020
The classical form of a flexural ultrasonic transducer is a piezoelectric ceramic disc bonded to a circular metallic membrane. This ceramic induces vibration modes of the membrane for the generation and detection of ultrasound.
Dixon, Steve M.   +3 more
core   +2 more sources

A High Sensitivity 20-MHz Endoscopic Transducer With Integrated Miniature Amplifier

open access: yesIEEE Access, 2020
Endoscopic transducer with small size and high frequency has been widely studied and applied in medical ultrasound imaging. However, attenuation affects high frequency ultrasound waves to a greater degree than lower frequency waves, which results in ...
Zhile Han   +6 more
doaj   +1 more source

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