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- Lamb wave mode 兰姆波模式
- 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。
- 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。
- 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
- 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。
- Lamb Waves modes 兰姆波模式
- 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。
- 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。
- 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).
- The electromagnetic fields components of the TE wave mode of a half-round waveguide are obtained theoretically, by using the conclusions of the rectangle and the circular waveguide, the superposition method and the mirror image method etc. 摘要利用矩形波导和圆形波导的结论,并结合叠加法和镜象法等工具,从理论上分析给出半圆形波导的TE波模型的电磁场分量。
- 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。
- Materials and Methods: The peak systolic velocity at mitral annulus (Sa) was measured by DTI pulsed wave mode using the apical window at 4 chamber, 2 chamber and long apical views. 材料和方法:对肥厚型心肌病及正常人分别测量二尖瓣环各点收缩期峰值速度。
- 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。
- Her daughter Nancy is an ewe lamb to her. 她的女儿南希是她的心肝宝贝。
- 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。
- 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。
- CALCULATION FOR LAMB WAVE DISPERSION CURVES 兰姆波频散曲线的计算
- parasitic oscillation in backward wave mode 回波寄生振荡
- The lamb had to be brought up by hand. 这只小羊要用奶瓶喂养。