Abstract：
:In this paper, a new topological structure for the Langevin-type ultrasonic transducer is proposed and investigated. The two cylindrical terminal blocks are conically shaped with four supporting plates each, and two cooling fins are disposed at the bottom of terminal blocks, adjacent to the piezoelectric rings. Experimental results show that it has larger vibration velocity, lower temperature rise and higher electroacoustic energy efficiency than the conventional Langevin transducer. The reasons for the phenomena can be well explained by the change of mass, heat dissipation surface and force factor of the transducer. The proposed design may effectively improve the performance of ultrasonic transducers, in terms of the working effect, energy consumption and working life.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Lu X,Hu J,Peng H,Wang Ydoi
10.1016/j.ultras.2016.11.008subject
Has Abstractpub_date
2017-03-01 00:00:00pages
1-8eissn
0041-624Xissn
1874-9968pii
S0041-624X(16)30289-Xjournal_volume
75pub_type
杂志文章相关文献
ULTRASONICS文献大全abstract：:Spatial dispersion is the variation of wave speed with wavelength. It sets in when the acoustic wavelength approaches the natural scale of length of the medium, which could, for example, be the lattice constant of a crystal, the repeat distance in a superlattice, or the grain size in a granular material. In centrosymm...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2006.05.215
更新日期：2006-12-22 00:00:00
abstract：:In previous work, we have demonstrated the use of single-holed Armoured Microbubbles (AMBs) for microfluidic mixing and self-propulsion. AMBs are hollow partial spheres, inside which we capture a bubble. Under ultrasound, the bubble oscillates, generating a streaming flow with velocities of 1-100 mm/s in water. In thi...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.106054
更新日期：2020-03-01 00:00:00
abstract：:Use of in-fiber Fabry-Perot (FP) filters based on fiber Bragg gratings as both sensor as well as an interrogator for enhancing the detection limit of elastic wave sensing is investigated in this paper. The sensitivity of such a demodulation scheme depends on the spectral discrimination of the sensor and interrogator g...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2015.02.018
更新日期：2015-07-01 00:00:00
abstract：:Experimentally observed dissipated nonlinearity in Lamb wave propagation in composites due to stress-relaxation is reported herein. It was found that the stress relaxation in composite is inherently coupled with the second order nonlinear parameter derived from the Lamb wave modes. Due to the combined effect of intern...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.01.002
更新日期：2019-07-01 00:00:00
abstract：:Ultrasonic vibration has been observed to lower the flow stress necessary to initiate plastic deformation, a phenomenon known as "acoustic softening". This unique effect of ultrasound has been extensively applied in welding, machining, forming of metals, and ultrasonic additive manufacturing to lower the yield stress ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.106005
更新日期：2020-03-01 00:00:00
abstract：:A surface ultrasonic wave approach was presented for measuring surface stress of brush electro-plating nickel coating specimen, and the influence of coating thickness on surface stress measurement was discussed. In this research, two Rayleigh wave transducers with 5MHz frequency were employed to collect Rayleigh wave ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2012.02.003
更新日期：2012-09-01 00:00:00
abstract：:Ultrasonic reflection and transmission measurements on saturated, plane-parallel, poroelastic slabs are presented. A data processing technique is proposed to obtain poroelastic parameters from transmission measurements. A special experimental data acquisition and processing technique is applied to minimize the finite ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2008.10.006
更新日期：2009-03-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Acoustic scattering properties of ultrasound contrast agents are useful in extending existing or developing new techniques for biomedical imaging applications. A useful first step in this direction is to investigate the acoustic scattering of a new class of acoustic beams, known as helicoidal h...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2009.09.003
更新日期：2010-03-01 00:00:00
abstract：:This paper describes a completely non-contact ultrasonic method of gas flow metering using air-coupled leaky Lamb waves. To show proof of principle, a simplified representation of gas flow in a duct, comprising two separated thin isotropic plates with a gas flowing between them, has been modelled and investigated expe...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.04.008
更新日期：2018-09-01 00:00:00
abstract：:The Total Focusing Method (TFM) yields a focused image in emission and in reception while Phased Array (PA) imaging provides Dynamic Depth Focusing (DDF) in reception only. Besides, most NDE applications have two propagation media, where refraction at the interface complicates time-of-flight (TOF) and focal law comput...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.105965
更新日期：2019-11-01 00:00:00
abstract：:This paper suggests a method for high-sensitivity damage detection. The method is based on pitch-catch measurements of Lamb waves combined with a baseline subtraction technique in the frequency-wavenumber domain. Small amplitude converted modes, generated during the interaction of propagating waves with damage, can th...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2013.08.010
更新日期：2014-02-01 00:00:00
abstract：:This article describes the use of the frequency domain finite element (FDFE) technique for guided wave mode selection in inhomogeneous waveguides. Problems with Rayleigh-Lamb and Shear-Horizontal mode excitation in isotropic homogeneous plates are first studied to demonstrate the application of the approach. Then, two...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2015.12.007
更新日期：2016-04-01 00:00:00
abstract：:Broken wires often occur at multiple locations in the same wire of a strand due to the recovery length, which is defined as the length of the wire taking up its full share of the axial load from the break point. The detection of broken-wire flaws at multiple locations along the same wire is investigated using guided w...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2012.05.003
更新日期：2013-01-01 00:00:00
abstract：:Surface and quasi-longitudinal acoustic wave properties have been investigated in potassium titanyl arsenate (KTiOAsO₄, KTA) single crystals for the first time. Surface acoustic wave (SAW) velocity, electromechanical coupling coefficient and power flow angle characteristics have been obtained in rotated Y-cut of KTA c...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2013.09.019
更新日期：2014-02-01 00:00:00
abstract：:The present study is focused on the development and characterization of an innovative substrate to optimize the axial resolution of ultrasonic transducers on a silicon substrate that is dedicated to ultrasound imaging. The substrate must efficiently dampen wave propagation to avoid degradation of the axial resolution ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.01.006
更新日期：2019-07-01 00:00:00
abstract：:It is now accepted that an effective way to investigate the elastic properties of soft tissues is to generate a localized transient acoustic radiation force and to follow the associated displacements in the time/space domain. Shear waves induced by this stress field are particularly interesting in this kind of medium ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2006.06.022
更新日期：2006-12-22 00:00:00
abstract：:Intraluminal (within the alimentary tract) thermal surgery has been shown to be a useful therapeutic option when extracorporeal focused ultrasound applicators cannot be used since their beam may not reach the target site. If plane transducers are used for the treatment of alimentary tract tumours, the applicator must ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2004.01.088
更新日期：2004-04-01 00:00:00
abstract：:A coordinated theoretical, numerical and experimental study is carried out in an effort to interpret the characteristics of propagating guided Lamb wave modes in presence of a high-density (HD) core region in a honeycomb composite sandwich structure (HCSS). Initially, a two-dimensional (2D) semi-analytical model based...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2016.05.025
更新日期：2016-09-01 00:00:00
abstract：:The present study focuses on a possibility for improving NO removal efficiency from flue gas by application of powerful sound waves. The sound waves (frequency 6.9-17.2kHz, intensity 144-160dB) are propagated from Hartmann sound generators to a preheated graphite disk inside a vertical reaction tube (height 1.8m, I.D....
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2004.06.010
更新日期：2005-02-01 00:00:00
abstract：:The matrix method for analyzing flexural vibration system is outlined. The displacement, stress and velocity gain of ultrasonic flexural vibration systems are investigated by transfer matrix method. A design method is given for flexural transducer and vibration system. ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(00)00034-2
更新日期：2000-11-01 00:00:00
abstract：:Development of acoustic source localization techniques in anisotropic plates has gained attention in the recent past and still has scope of improvement. Most of such techniques existing in the literature either require known material properties or assume a straight line propagation of wave energy from the acoustic sou...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.105977
更新日期：2020-01-01 00:00:00
abstract：:The dispersion and attenuation features of the multi-physical fields coupled waves propagating in an infinite piezoelectric semiconductor and the reflection problem at a boundary which is mechanically free, electrically insulation and the dielectrically open circuit are studied in this paper. Different from the classi...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.09.009
更新日期：2019-02-01 00:00:00
abstract：:In ultrasonic non-destructive testing of materials with a coarse-grained structure the scattering from the grains causes backscattering noise, which masks flaw echoes in the measured signal. Several filtering methods have been proposed for improving the signal-to-noise ratio. In this paper we present a comparative stu...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2009.05.010
更新日期：2009-12-01 00:00:00
abstract：:The study is aimed to perform dynamic modeling of a part feeder powered by piezoelectric actuation. This part feeder consists mainly of a horizontal platform vibrated by a pair of parallel piezoelectric bimorph beams. Owing to intermittent impacts with the platform, the transported part on the platform is able to marc...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2007.02.002
更新日期：2007-06-01 00:00:00
abstract：:This paper presents a study on topology optimization of novel material microstructural configurations to achieve directional elastic wave propagation through maximization of partial band gaps. A waveguide incorporating a periodic-microstructure material may exhibit different propagation properties for the plane elasti...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2017.07.006
更新日期：2018-01-01 00:00:00
abstract：:Transducer is the necessary and most important part in the maxonics. New applications demand for new transducer, and the renovation of the transducer will open a new field for the application of the maxonics. The important method to develop new transducer is to find and develop new material. The rare earth giant magne...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2006.05.128
更新日期：2006-12-22 00:00:00
abstract：:For medical high frequency acoustic imaging purposes the reduction in size of a single transducer element for one-dimensional and even more for two-dimensional arrays is more and more limited by fabrication and cabling technology. In the fields of industrial distance measurement and simple object recognition low cost ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(99)00085-2
更新日期：2000-03-01 00:00:00
abstract：:Molecular techniques are transforming our understanding of cellular function and disease. However, accurate molecular analysis methods will be limited if the input DNA, RNA, or protein is not derived from pure population of cells or is contaminated by the wrong cells. A novel Ultrasonic Vibration Micro-dissection (UVM...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2006.06.010
更新日期：2006-12-22 00:00:00
abstract：:Explicit integral representations for the wave fields generated by air-coupled or underwater transducers in an acoustic medium with a submerged elastic (metallic or laminate composite) plate are obtained in the form of path Fourier integrals. Together with the far-field asymptotics for the incident, reflected, transmi...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.10.001
更新日期：2019-04-01 00:00:00
abstract：:This paper presents the experimental study of a miniaturized surface acoustic waves (SAWs) rotary motor and the theoretical calculation. After the first success in SAW rotary motor operating at 9.85 MHz, a smaller rotary motor is designed. With the operating frequency of 30 MHz and the driving voltage of 120 V(p-p), t...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(02)00264-0
更新日期：2002-06-01 00:00:00
