Ultrasound open platforms for next-generation imaging technique development

E Boni, CH Alfred, S Freear, JA Jensen… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Open platform (OP) ultrasound systems are aimed primarily at the research community. They
have been at the forefront of the development of synthetic aperture, plane wave, shear wave …

An ultrasonic guided wave excitation method at constant phase velocity using ultrasonic phased array probes

G Veit, P Belanger - Ultrasonics, 2020 - Elsevier
High-order ultrasonic guided wave modes have recently been attracting interest in a variety
of nondestructive testing applications, ranging from thickness gauging to bond …

A radar transducer for unidirectionally emitting and steering SH guided wave

Y Du, H Miao - Ultrasonics, 2024 - Elsevier
It is of practical importance to emit a pure wave mode, focus its energy along a given
direction, and then steer the wave beam in guide-wave-based structural health monitoring …

HIFU drive system miniaturization using harmonic reduced pulsewidth modulation

C Adams, TM Carpenter, D Cowell… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Switched excitation has the potential to improve on the cost, efficiency, and size of the linear
amplifier circuitry currently used in high-intensity focused ultrasound (HIFU) systems …

An empirical study on transmission beamforming for ultrasonic guided-wave based structural health monitoring

S Cantero-Chinchilla, G Aranguren, MK Malik… - Sensors, 2020 - mdpi.com
The development of reliable structural health monitoring techniques is enabling a healthy
transition from preventive to condition-based maintenance, hence leading to safer and more …

Study on the determination method of excitation load in electrical signal simulation for piezoelectric ultrasonic internal inspection of pipelines

G Xu, J Liu, Q Wen, Y Zheng, L Cai - Scientific Reports, 2024 - nature.com
Accurately determining the initial acoustic field excitation load of a piezoelectric ultrasonic
probe is essential for simulating electrical signals and calculating wall thickness during …

Design and Proof-of-Concept of a Matrix Transducer Array for Clamp-On Ultrasonic Flow Measurements

J Massaad, PLMJ Van Neer… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Common clamp-on ultrasonic flow meters consist of two single-element transducers placed
on the pipe wall. Flow speed is measured noninvasively, ie, without interrupting the flow and …

Excitation of unidirectional SH wave within a frequency range of 50 kHz by piezoelectric transducers without frequency-dependent time delay

J Cai, H Zhang, H Miao - Ultrasonics, 2022 - Elsevier
Unidirectional generation of a pure guided wave mode is of practical importance in structural
health monitoring (SHM). Currently, unidirectional propagation guided waves can only be …

Excitation and acquisition of cranial guided waves using a concave array transducer

C Adams, J McLaughlan, L Nie, S Freear - Proceedings of Meetings on …, 2017 - pubs.aip.org
Focused ultrasound has been used extensively to treat numerous diseases1–3 and provide
palliative care. 4, 5 By focusing ultrasonic energy to a point using either an acoustic lens or …

Modified harmonic reduction pulse width modulation (mhrpwm) for switched excitation of resonant hifu transducers

DMJ Cowell, TM Carpenter, C Adams… - 2018 IEEE …, 2018 - ieeexplore.ieee.org
High Intensity Focused Ultrasound (HIFU) is reliant on carefully designed excitation systems
capable of high power, and low distortion. The use of array transducers additionally requires …