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- Lamb Waves modes 兰姆波模式
- Lamb wave mode 兰姆波模式
- I. A. Viktorov, Rayleigh and Lamb Waves: Physical Theory and Application, Plenum Press, New York (1967). 郑胜文;聚焦式超声波换能器之蓝姆波量测分析与应用;国立成功大学机械工程学系硕士论文(2000).
- XMAC works with monopole full wave mode in cased hole. XMAC在套管井中采用单极全波测量模式。
- This paper introduces two methods of ultrasonic characterization of thin layers: longitudinal pulse-echo and Lamb waves. 摘要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。
- Abstract: Wedge transducers located on the surfaces of layered planar structures are used to generate and detect the multimode Lamb waves. 文章摘要: 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。
- The varied dispersion curves worked out this paper is helpful in application of ultrasonic Lamb wave. 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。
- For the different solidifying time of the adhesive layer, the measured amplitude-frequency relationships of the multimode Lamb waves are quite different. 对于不同的粘接层固化时间，实验测得的多模兰姆波幅频曲线明显不同。
- Affected by higher Rayleigh wave modes in the surface wave field,the effective phase velocity obtained by spectral analysis of surface waves(SASW. 由分层介质表面两不同点响应互谱分析(SASW)得到的有效相速度并不对应于面波基阶模态相速度,它与波场中高阶模态能量分配比例有关。
- This paper introduced a new Lamb wave sensor based on the analysis of nowaday methods for measuring sound velocity in liquid. 在分析现有液体声速测量方法的基础上,提出了一种新的兰姆波传感器。
- This paper presents the basic characteristics of magnetostatic waves, including different magnetostatic wave modes, frequency dipersion relation, band charateristics and so on. 文中论述静磁波的基本特性，包括不同模式、频散关系、频带特性等等。结合引信系统中的应用，介绍了控制静磁波频散特性的各种方法。
- Mode identify of Lamb wave by means of 2-D FFT 用二维傅里叶变换识别兰姆波模式的研究
- In this work the ferromagnetic plate was detected by Lamb waves generated and received by EMATs, and the Lorentz force and magnetostrictive effect as conversion principles were discussed. 本文描述了用电磁声换能器激发和接收兰姆波用于检测铁磁性钢板的情况,并讨论了作为转换机制的洛仑兹力和磁致伸缩效应。
- In this paper, the modes of travelling waves on a transmission line are studied with Laplace transform and matrix analysis. Then the principles of fault relaying based on travelling wave modes are presented. 本文首先以拉氏变换和矩阵理论探讨输电线路的行波及其模式,然后论述输电线路行波继电保护的原理。
- Lamb waves method is mainly used to characterize thin plate materials, without using very high frequency, it can measure the velocity of transverse wave and longitudinal wave, depth of the plate, and the bonding quality between plates. 兰姆波法主要用于表征薄板类材料，无需较高检测频率，可以测得板中纵波和横波的声速、板厚和板与板之间的结合特性等，检测精度较高。
- In this work, the propagation characteristic of electromagnetic wave in a round tunnel is simulated by solving numerically the wave mode equations. 研究了圆形隧道中电磁波的固有传播和导行传播的传播特性,采用数值方法求解了波模方程。
- Her daughter Nancy is an ewe lamb to her. 她的女儿南希是她的心肝宝贝。
- Then the principles of fault relaying based on travelling wave modes are presented.In the appendix, the general method of finding eigenvalue and eigenvector is stated for reference. 在附录中还列出特征值与特征矢量的一般求法,以资与正文所述相对照。
- This method and the acquired results provide important theoretical basis for Lamb wave plate inspection and can also be used as the foundation of defect quantification algorithm development. 边界元仿真的结果为使用兰姆波进行弹性平板缺陷检测提供了重要的理论基础，也可以作为缺陷量化的依据。
- 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. 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。
