Results 231 to 240 of about 2,905,814 (268)

Material interface inspection by lamb waves

International Journal of Solids and Structures, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kundu, T., Maslov, K.
openaire   +1 more source

High-Frequency Resonator Using A1 Lamb Wave Mode in LiTaO3 Plate

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019
Acoustic wave devices utilizing plate waves in thin lithium tantalate (LiTaO3) have the potential of achieving high resonance frequency with a suitable electromechanical coupling factor and a relatively small temperature coefficient of frequency (TCF ...
Najoua Assila, M. Kadota, Shuji Tanaka
semanticscholar   +1 more source

Lamb wave interaction with light

Journal of Applied Physics, 1985
The interaction of light with Lamb waves propagating in transparent plates has been investigated. The analytical study has been done by considering a three-step interaction, at the limiting surfaces and within the propagation medium. Experimental data are given, relative to isotropic crystal plates in the MHz frequency regions and compared with theory.
A. Alippi, P. Diodati, D. Maccari, G. Socino   +3 more
openaire   +1 more source

Damage Identification Using Lamb Waves

Key Engineering Materials, 2010
The concept of damage detection using sensors in composite panels is of growing interest, due to the reduction in maintenance activity and increasing of the aircraft safety. Piezoelectric materials have been widely used to build a variety of transducers for activating and receiving Lamb waves which are used for delamination/damage detection. The aim of
Z. Sharif-Khodaei, Ferri M.H.Aliabadi
openaire   +1 more source

Lamb wave-based molecular diagnosis using DNA hydrogel formation by rolling circle amplification (RCA) process.

Biosensors & bioelectronics, 2019
Recent developments in microfluidics enable the lab-on-a-chip-based molecular diagnosis. Rapid and accurate diagnosis of infectious diseases is critical for preventing the transmission of the disease.
Jeonghun Nam, W. Jang, Jisu Kim, Hyukjin Lee, C. Lim   +4 more
semanticscholar   +1 more source

Lamb-wave electroacoustic voltage sensor

Journal of Applied Physics, 1985
The effect of a bias electric field on the phase velocity of Lamb waves propagating in a piezoelectric plate has been investigated in order to develop an electroacoustic voltage sensor. Experiments were performed on YX and YZ LiNbO3 Lamb-wave delay lines, used as the stabilizing element in the feedback loop of an oscillator, by measuring the fractional
Palma A, Palmieri L, Socino G, Verona E
openaire   +2 more sources

Contact scanning Lamb wave tomography

The Journal of the Acoustical Society of America, 1998
Lamb waves are guided ultrasonic waves capable of propagating relatively long distances in platelike structures such as airframe skins, storage tanks, and pressure vessels. Their propagation depends on frequency thickness and material properties, and, because structural flaws present changes in effective thickness and/or material properties, Lamb waves
Mark Hinders, Eugene Malyarenko, James McKeon   +2 more
openaire   +1 more source

Dictionary design for Lamb wave sparse decomposition

NDT & E international, 2019
Lamb wave is a promising tool for nondestructive testing and evaluation (NDT&E). Due to dispersion and multi-mode, wave components generally overlap with each other at Lamb wave signal, which makes the interpretation difficult.
J. Hua, L. Zeng, Fei Gao, Jing Lin
semanticscholar   +1 more source

The Multi-Mode Resonance in AlN Lamb Wave Resonators

Journal of microelectromechanical systems, 2018
The characteristics of the multi-mode resonance behavior of AlN Lamb wave resonators (LWRs) are theoretically and experimentally investigated for the first time in this paper.
J. Zou, Chih-Ming Lin, A. Gao, A. Pisano
semanticscholar   +1 more source

Subsonic lamb waves in anisotropic layers

Journal of Applied Mathematics and Mechanics, 2001
According to \textit{H. Lamb} [Proc. Roy. Soc. London. Ser. A. 93, No. 648, 114-128 (1917)] a harmonic wave consists of several partial waves of the form \[ u_k = m_ke^{ir\gamma_k x\cdot v}e^{ir(n\cdot x -ct}.\tag{1} \] The author shows that in the case of the Lamb wave propagating with subsonic velocity in anisotropic layers the representation (1 ...
openaire   +2 more sources