A theoretical and experimental investigation into multilayered piezoelectric composite transducers [PDF]
, 2002 The behaviour of a number of 3-1 connectivity piezoelectric composite plate transducers is presented. The fundamental thickness mode resonance of such devices is found to be contaminated by lateral resonant activity; this is evidenced in the measured and
R.L. O'Leary +3 more
core +1 more source
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
doaj +1 more source
Tapered transmission line technique based graded matching layers for thickness mode piezoelectric transducers [PDF]
, 2009 Conventionally, in order to acoustically match thickness mode piezoelectric transducers to a low acoustic impedance load medium, multiple quarter wavelength (QW) matching layers are employed at the front face of the device.
Ramadas, Sivaram Nishal +6 more
core +1 more source
A modular FPGA-based ultrasonic array system for applications including non-destructive testing [PDF]
, 2008 This paper reports work aimed at the development of an ultrasonic imaging system comprising modular, reprogrammable building blocks, or tiles, which can be customised for multiple applications, including and within non-destructive testing (NDT), by the ...
Afroukh, F. +6 more
core +1 more source
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
doaj +1 more source
Ultrasonics SonochemistryLongitudinal vibration sandwich piezoelectric transducers with a stepped horn are widely used in high-intensity ultrasonic applications such as ultrasonic welding, ultrasonic machining, and ultrasonic cleaning. In these applications, due to the increased
Zhongji Yang +5 more
doaj +1 more source
Screening and epitope characterization of Nidogen‐2‐specific nanobodies
FEBS Open Bio, EarlyView.Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen +9 more
wiley +1 more source
Design of high frequency ultrasonic array transducers for medical imaging [PDF]
, 2011 Ultrasonic transducers have been widely used in the medical applications. High frequency array transducers have recently attracted many research interests, since it provides not only the electronic beamforming but also the very fine image resolution. The
Qian, Yichen
core
A three-port acoustic lattice model for piezoelectric transducers containing opposing zones of polarization [PDF]
, 2006 Inversion Layer Transducers (ILT) have attracted considerable interest in the recent past, due to the wide bandwidth and even harmonic sensitivity. This paper presents a new three-port lattice model for ILT devices.
Murray, V. +21 more
core +1 more source
The Acoustic Field Distribution Inside the Ultrasonic Ring Array
Archives of Acoustics, 2018 This paper presents and analyses the results of a simulation of the acoustic field distribution in sectors of a 1024-element ring array, intended for the diagnosis of female breast tissue with the use of ultrasonic tomography.
Wiktor STASZEWSKI +2 more
doaj +1 more source