Results 21 to 30 of about 32,854 (304)

Flexible ultrasonic transducers

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2006
Flexible ultrasonic transducers (UTs) consisting of a metal foil, a piezoelectric ceramic film, and a top electrode have been developed. The flexibility is realized owing to the porosity of piezoelectric film and the thinness of metal foil. In this paper, the stainless steel (SS), lead-zirconate-titanate (PZT)/PZT composite and silver paste were chosen
Kobayashi, M., Jen, C.-K., Lévesque, D.
openaire   +4 more sources

A Matlab/Simulink 3D model of unsymmetrical ultrasonic sandwich transducers [PDF]

Serbian Journal of Electrical Engineering, 2018
Ultrasonic sandwich transducer is a half-wave resonant structure which oscillates in thickness direction. This paper presents a new Matlab/ Simulink model of a prestressed unsymmetrical ultrasonic sandwich transducer, which is modeled by ...
Jovanović Igor, Jovanović Uglješa, Mančić Dragan   +2 more
doaj   +1 more source

Miniature probe for mapping mechanical properties of vascular lesions using acoustic radiation force optical coherence elastography

Scientific Reports, 2017
Cardiovascular diseases are the leading cause of fatalities in the United States. Atherosclerotic plaques are one of the primary complications that can lead to strokes and heart attacks if left untreated. It is essential to diagnose the disease early and
Yueqiao Qu, Teng Ma, Youmin He, Mingyue Yu, Jiang Zhu, Yusi Miao, Cuixia Dai, Pranav Patel, K. Kirk Shung, Qifa Zhou, Zhongping Chen   +10 more
doaj   +1 more source

A Novel Broadband Ultrasonic Location System [PDF]

, 2002
Indoor ultrasonic location systems provide ne-grained position data to ubiquitous computing applications. However, the ultrasonic location systems previously developed utilize narrowband transducers, and thus perform poorly in the presence of noise and ...
Ward, Andy, Mike Hazas, Andy Ward, Hazas, Michael   +3 more
core   +1 more source

Study on a novel omnidirectional ultrasonic cavitation removal system for Microcystis aeruginosa

Ultrasonics Sonochemistry, 2022
Microcystis aeruginosa, as a typical alga, produces microcystin with strong liver toxicity, seriously endangering the liver health of human and animals. Inhibiting the bloom of the Microcystis aeruginosa in lakes becomes a significant and meaningful work.
Hao-Ren Feng, Jian-An Wang, Liang Wang, Jia-Mei Jin, Shu-Wen Wu, Charles-C. Zhou   +5 more
doaj   +1 more source

Study on frequency tracking method of ultrasonic scalpel based on impedance matching

Dianzi Jishu Yingyong, 2019
With the development of science and technology, ultrasonic scalpel is widely used in medical treatment. In practical application, in order to make the transducer of the ultrasonic scalpel convert electrical energy into mechanical energy as much as ...
Yang Lin, Dai Jianfeng, Zhao Hucheng, Gao Zhan, Lu Yang, Sun Xueming   +5 more
doaj   +1 more source

MOSAIC: An integrated ultrasonic 2-D array system [PDF]

, 2007
An investigation into the development of an ultrasound imaging system capable of customization for multiple applications via the tessellation of in-system programmable scalable modules, or tiles, is presented here.
D.R.S. Cumming, S. Triger, J.-F. Saillant, Saillant, J-F., J. Wallace, S. Cochran, Wallace, J., Cumming, D.R.S., Triger, S., Cochran, S.   +9 more
core   +1 more source

Measurement of a 3D Ultrasonic Wavefield Using Pulsed Laser Holographic Microscopy for Ultrasonic Nondestructive Evaluation

Sensors, 2018
In ultrasonic array imaging, 3D ultrasonic wavefields are normally recorded by an ultrasonic piezo array transducer. Its performance is limited by the configuration and size of the array transducer.
Xing Wang, Guang-Ming Zhang, Hongwei Ma, Yishu Zhang, Doudou Wang   +4 more
doaj   +1 more source

Two-Dimensional Photoacoustic/Ultrasonic Endoscopic Imaging Based on a Line-Focused Transducer

Frontiers in Bioengineering and Biotechnology, 2022
Existing acoustic-resolution photoacoustic/ultrasonic endoscopy (PA/USE) generally employs a point-focused transducer for ultrasound detection, which is only sensitive in its focal region, thus the lateral resolution and sensitivity drop dramatically ...
Weiran Pang, Weiran Pang, Yongjun Wang, Lili Guo, Bo Wang, Puxiang Lai, Jiaying Xiao   +6 more
doaj   +1 more source

Development and Investigation of High-Temperature Ultrasonic Measurement Transducers Resistant to Multiple Heating–Cooling Cycles

Sensors, 2023
Usually for non-destructive testing at high temperatures, ultrasonic transducers made of PZT and silver electrodes are used, but this could lead to damage to or malfunction of the ultrasonic transducer due to poor adhesion between PZT and silver ...
Vaida Vaskeliene, Reimondas Sliteris, Rymantas Jonas Kazys, Egidijus Zukauskas, Liudas Mazeika   +4 more
doaj   +1 more source