Results 21 to 30 of about 19,687 (305)
Crystals, 2022 Lead-free piezoelectric material-based ultrasonic transducers have been researched for several years, but the inefficient properties and design difficulties have troubled lead-free ultrasonic transducers for a long time.
Junshan Zhang +10 more
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Photoacoustic microscopy based on transparent piezoelectric ultrasound transducers
Journal of Innovative Optical Health Sciences, 2023 Photoacoustic microscopy (PAM), due to its deep penetration depth and high contrast, is playing an increasingly important role in biomedical imaging.
Hangbing Peng +3 more
doaj +1 more source
A Review of UltraHigh Frequency Ultrasonic Transducers
Frontiers in Materials, 2022 The ultrahigh-frequency (UHF) ultrasonic transducers are active in various fields, including nondestructive evaluation in the semiconductor industry, microscopic biological organization imaging in biomedicine, particle manipulation, and so on.
Jun Chen +8 more
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Active acoustic field modulation of ultrasonic transducers with flexible composites
Communications Physics, 2023 The simple acoustic field generated by conventional transducers limits the development of ultrasound applications. Current methods rely on passive acoustic lenses or active arrays to manipulate ultrasonic waves, but they face challenges such as low ...
Chenxue Hou +10 more
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An Optimized Miniaturized Ultrasound Transducer for Transcranial Neuromodulation
Frontiers in Neuroscience, 2022 Transcranial ultrasound stimulation (TUS) is a young neuromodulation technology, which uses ultrasound to achieve non-invasive stimulation or inhibition of deep intracranial brain regions, with the advantages of non-invasive, deep penetration, and high ...
Chenxue Hou +7 more
doaj +1 more source
A Novel Rotary Ultrasonic Motor Using the Longitudinal Vibration Mode
IEEE Access, 2019 A novel rotary ultrasonic motor using only the longitudinal vibration mode was proposed in this paper, which avoided the frequency degeneration of multi-modal coupling ultrasonic motors.
Dongmei Xu +3 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 +3 more
core +1 more source
Lead-free piezoelectric materials and ultrasonic transducers for medical imaging [PDF]
Journal of Advanced Dielectrics, 2015 Piezoelectric materials have been vastly used in ultrasonic transducers for medical imaging. In this paper, firstly, the most promising lead-free compositions with perovskite structure for medical imaging applications have been reviewed.
Elaheh Taghaddos +2 more
doaj +1 more source
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
Analysis of ultrasonic transducers with fractal architecture [PDF]
, 2008 Ultrasonic transducers composed of a periodic piezoelectric composite are generally accepted as the design of choice in many applications. Their architecture is normally very regular and this is due to manufacturing constraints rather than performance ...
Hayward, G. +5 more
core +1 more source