Results 11 to 20 of about 240,269 (227)
High Temperature Ultrasonic Transducers: A Review
Sensors, 2021 There are many fields such as online monitoring of manufacturing processes, non-destructive testing in nuclear plants, or corrosion rate monitoring techniques of steel pipes in which measurements must be performed at elevated temperatures.
Rymantas Kazys, Vaida Vaskeliene
exaly +3 more sources
Ferroelectret Ultrasonic Transducers for Pulse-Echo Water Immersion
Applied Sciences (Switzerland), 2020 Ferroelectrets are thin and porous polymeric films with a cellular microstructure, high porosity, permanent polarization and piezoelectric response.
Linas Svilainis +2 more
exaly +3 more sources
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, Hazas, Michael
core +5 more sources
Investigating the Performance of an Ultrasound-Assisted Rotating Packed Bed Reactor for the Enhancement of the Micromixing Efficiency [PDF]
Iranian Journal of Chemical Engineering, 2021 The Micromixing plays a key role in the most of industrial processes; enhancing its efficiency is a very important issue. In this study, a typical rotating packed bed (RPB) reactor equipped with the blade packing and high frequency ultrasonic transducers
Mahdi Hefzi Lotfabadi +1 more
doaj +1 more source
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. +3 more
core +4 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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