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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
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The Dynamic Performance of Flexural Ultrasonic Transducers
Sensors, 2018 Flexural ultrasonic transducers are principally used as proximity sensors and for industrial metrology. Their operation relies on a piezoelectric ceramic to generate a flexing of a metallic membrane, which delivers the ultrasound signal.
Andrew Feeney +3 more
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Micromachines, 2023 Ultrasonic (US) transducers have been widely used in the field of ultrasonic and photoacoustic imaging system in recent years, to convert acoustic and electrical signals into each other.
Danyang Ren +4 more
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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.
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Research and Modeling of Mechanical Crosstalk in Linear Arrays of Ultrasonic Transducers
Archives of Acoustics, 2016 Linear arrays of ultrasonic transducers are commonly used as ultrasonic probes in medical diagnostics for imaging the interior of a human body in vivo. The crosstalk phenomenon occurs during the operation of transducers in which electrical voltages and ...
Mateusz CELMER, Krzysztof J. OPIELIŃSKI
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Ultrahigh Frequency Ultrasonic Transducers (150MHz) Based on Silicon Lenses
Micromachines, 2023 Acoustic microscopes and acoustic tweezers have great value in the application of microparticle manipulation, biomedical research and non-destructive testing.
Jun Chen +6 more
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Air-Coupled Low Frequency Ultrasonic Transducers and Arrays with PMN-32%PT Piezoelectric Crystals
Sensors, 2017 Air-coupled ultrasonic techniques are being increasingly used for material characterization, non-destructive evaluation of composite materials using guided waves as well as for distance measurements.
Rymantas J. Kazys +2 more
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DESIGN OF INNOVATIVE MEASUREMENT SYSTEMS IN ULTRASONIC TOMOGRAPHY
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2022 The article describes the progress of construction and research works on ultrasound tomography. The devices allow for non-invasive measurements of various objects using ultrasonic low and high-frequency transducers.
Michał Gołąbek, Tomasz Rymarczyk
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Study of ultrasonic thermometry based on ultrasonic time-of-flight measurement
AIP Advances, 2016 Ultrasonic thermometry is a kind of acoustic pyrometry and it has been evolving as a new temperature measurement technology for various environment. However, the accurate measurement of the ultrasonic time-of-flight is the key for ultrasonic thermometry.
Ruixi Jia +6 more
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Magnesium Alloy Matching Layer for High-Performance Transducer Applications
Sensors, 2018 In this paper, we report the use of magnesium alloy (AZ31B) as the matching material for PZT-5H ultrasonic transducers. The AZ31B has an acoustic impedance of 10.3 MRayl, which provides a good acoustic impedance match for PZT-5H ultrasonic transducers in
Yulei Wang +6 more
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