Results 21 to 30 of about 4,777 (211)
Dynamics characterisation of cymbal transducers for power ultrasonics applications [PDF]
, 2016 A class V cymbal flextensional transducer is composed of a piezoceramic disc sandwiched between two cymbal-shaped shell end-caps. Depending on the type of piezoceramic, there exists a maximum voltage that can be reached without depolarisation, but also ...
Bejarano, Fernando +2 more
core +1 more source
Sensors, 2017 Cracks in oil and gas pipelines cause leakage which results in property damage, environmental pollution, and even personal injury or loss of lives. In this paper, an active-sensing approach was conducted to identify the crack damage in pipeline structure
Guofeng Du +3 more
doaj +1 more source
Development of an omnidirectional SH0 piezoceramic transducer [PDF]
AIP Conference Proceedings, 2016 Ultrasonic guided waves are now routinely used in non-destructive evaluation. In plate-like structures, three fundamental modes can propagate, namely A0, S0 and SH0. Most of the guided wave literature has thus far focused on the use of A0 and/or S0 because these modes are easy to generate in plate-like structures using standard piezoceramic transducers.
Pierre Belanger, Guillaume Boivin
openaire +1 more source
Damage Detection of L-Shaped Concrete Filled Steel Tube (L-CFST) Columns under Cyclic Loading Using Embedded Piezoceramic Transducers. [PDF]
Sensors (Basel), 2018 Zhang J, Li Y, Du G, Song G.
europepmc +2 more sources
The Fabrication and Integration of a 15 MHz Array Within a Biopsy Needle [PDF]
, 2017 It is proposed that integrating ultrasound transducer arrays at the tip of tools such as biopsy needles could enable valuable, real-time image feedback during interventional procedures.
Cochran, Sandy +6 more
core +4 more sources
An analytical model of a longitudinal-torsional ultrasonic transducer [PDF]
, 2012 The combination of longitudinal and torsional (LT) vibrations at high frequencies finds many applications such as ultrasonic drilling, ultrasonic welding, and ultrasonic motors.
Al-Budairi, H., Lucas, M.
core +1 more source
Micromachines, 2018 Radially layered cylindrical piezoceramic/epoxy composite transducers have been designed by integrating the excellent performance of piezoelectric/polymer composites and the radial radiation ability of cylindrical configurations, which are promising in ...
Jianjun Wang +3 more
doaj +1 more source
Mathematical Modelling of Rod-Type Piezo-Electric Transducers for Acoustoelectronic Devices
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2021 The work is devoted to the peculiarities of the construction and study of mathematical models of rod-type piezoelectric transducers, which are widely used in various acoustoelectronic devices (hydroacoustic means of target detection, ultrasonic non ...
C. V. Bazilo +4 more
doaj +1 more source
A comparison of two configurations for a dual-resonance cymbal transducer [PDF]
, 2018 The ability to design tuned ultrasonic devices that can be operated in the same mode at two different frequencies has the potential to benefit a range of applications, such as surgical cutting procedures where the penetration through soft then hard ...
Feeney, Andrew, Lucas, Margaret
core +1 more source
A POSHE-Based Optimum Clip-Limit Contrast Enhancement Method for Ultrasonic Logging Images
Sensors, 2018 Enabled by piezoceramic transducers, ultrasonic logging images often suffer from low contrast and indistinct local details, which makes it difficult to analyze and interpret geologic features in the images.
Qingqing Fu +3 more
doaj +1 more source