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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   +4 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   +4 more sources

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

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

A Flexible Ultrasound Transducer Array with Micro-Machined Bulk PZT

open access: yesSensors, 2015
This paper proposes a novel flexible piezoelectric micro-machined ultrasound transducer, which is based on PZT and a polyimide substrate. The transducer is made on the polyimide substrate and packaged with medical polydimethylsiloxane. Instead of etching
Zhe Wang   +8 more
doaj   +3 more sources

A 35 MHz/105 MHz Dual-Element Focused Transducer for Intravascular Ultrasound Tissue Imaging Using the Third Harmonic

open access: yesSensors, 2018
The superharmonic imaging of tissue has the potential for high spatial and contrast resolutions, compared to the fundamental and second harmonic imaging.
Junsu Lee, Ju-Young Moon, Jin Ho Chang
doaj   +3 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

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