该方法对兰姆波的工程应用有实际指导意义。
It is of significance for practical application of Lame waves in engineering.
文章计算出的多种频散曲线对超声兰姆波的应用是有益的。
The varied dispersion curves worked out this paper is helpful in application of ultrasonic Lamb wave.
所得结果对应用超声兰姆波评价板材疲劳损伤具有实际意义。
The results are of practical significance in the application of Lamb waves for nondestructive evaluation of material damage.
文中给出了若干兰姆波信号幅度与板中不同深度缺陷的相互关系。
Some numerical relations between the depth of defects and the amplitude of Lamb waves are achieved.
兰姆波各模式在时频空间能量分布变化与胶接强度有较好的相关性。
The Lamb modes in the AU signals were analyzed using time-frequency method, and the energy variation of Lamb modes was correlated to the adhesive bond strength with good correlation.
置于层状平面结构表面的斜劈超声换能器被用于激发和接收多模兰姆波。
Wedge transducers located on the surfaces of layered planar structures are used to generate and detect the multimode Lamb waves.
采用该传感器测试了激光超声表面波、兰姆波和纵波，获得了很好的波形。
The sensor was applied to detect several kinds of laser ultrasonic, such as surface acoustic wave, Lamb wave and longitudinal wave, well-defined waveforms were obtained.
介绍了两种常用的材料薄层超声表征方法———纵波脉冲回波法和兰姆波法。
This paper introduces two methods of ultrasonic characterization of thin layers: longitudinal pulse-echo and Lamb waves.
用兰姆波可对固体火箭发动机进行胶接质量的检测，但需要对其模式进行选择。
Interface bond quality of solid propellant rocket motor can be tested by Lamb waves, but the modes of Lamb waves need to be selected.
以部分波理论和表面有效介电常数方法为基础，建立了兰姆波传感器的数学模型。
The mathematical model of the Lamb wave sensor was established on the basis of the partial wave theory and the surface effective permittivity method.
基于导波的部分平面波分析理论，建立了复合固体层中非线性兰姆波的理论模型。
A theoretical model for nonlinear Lamb mode propagation in a composited layer has been established, based on a partial plane wave approach.
本文介绍了两种目前常用的材料薄层超声表征方法——纵波脉冲回波法和兰姆波法。
This paper introduces two methods of ultrasonic characterization of thin layers: pulse-echo and Lamb waves.
实验中，采用直探头与可变角探头作为超声波换能器做了接收宽带兰姆波信号的对比。
In the experiment, both the normal probe and variable Angle probe are used to receive broadband Lamb wave signals.
对金属薄板兰姆波探伤中的一些问题进行了探讨，提出了能量沿板厚分布的计算公式。
Some questions about Lamb waves in nondestructive testing of thin metal sheet were discussed in this paper. The calculation formula of energy distribution along thickness of sheet was advanced.
随着弹性模量的变化，兰姆波相速度和表面位移场与弹性模量之间有一定的对应关系。
There are the relationship between elastic modulus and phase - speed and surface - displacement of Lamb wave.
利用兰姆波进行液位测量，有不接触待测液体的特点，可用于密封容器内液位的准确测量。
That properties of noncontacted measured liquid made liquid level measurement by lamb wave can be used for accurate measurement of liquid level in sealed container.
提出了用低频多模式超声兰姆波定征方法来估计超薄弹性层的纵波声速、横波声速、厚度和密度等参数。
A low frequency multi mode ultrasonic Lamb wave method suitable for characterizing shear and longitudinal wave velocities, thickness and density of ultra thin elastic layers is presented.
分析了兰姆波对液体密度变化的敏感情况，提出了一种基于兰姆波技术的测量液体密度微小变化声传感器。
The sensitivity of Lamb wave was analyzed and the working theory of a novel density sensor for liquid based on the Lamb wave technology was presented.
提出用低频超声类兰姆波定征方法来估计超薄双层胶结复合结构各层的纵波声速、横波声速、厚度和密度等参数。
A low frequency ultrasonic (Lamb like) wave method is used for characterizing the shear, longitudinal wave velocities, the thickness, and the density of ultra thin two layered bonding composite.
提出用低频超声类兰姆波定征方法来估计超薄黏结复合结构各层与黏结层的厚度、密度、纵波声速和横波声速等参数。
A low frequency ultrasonic Lamb like wave method suitable for characterizing the thickness, density, shear and longitudinal wave velocities of the ultra thin bonding composite is presented.
在考虑晶体的压电性和各向异性基础上，从声的波动理论出发，对叉指换能器在液体-压电晶片界面上兰姆波的激发理论及其性质进行了研究。
To solve these problems, the properties of Lamb wave excited by interdigital transducer in the piezoelectric substrate covered by liquid were studied based on its piezoelectricity and anisotropy.
在考虑晶体的压电性和各向异性基础上，从声的波动理论出发，对叉指换能器在液体-压电晶片界面上兰姆波的激发理论及其性质进行了研究。
To solve these problems, the properties of Lamb wave excited by interdigital transducer in the piezoelectric substrate covered by liquid were studied based on its piezoelectricity and anisotropy.
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