您要查找的是不是：
- PVDF Comb Transducer for Controlling Guided Wave Mode and Application in Inspection PVDF梳状传感器及在超声导波检测中的应用
- Wave Mode and Frequency Selection of Ultrasonic Guided Waves Pipe Inspection Technology 超声导波管道检测中导波模态及频率的选择
- guided wave mode 导波模式
- The recent advances in ultrasonic guided wave testing technique are summarized. 摘要综述近年来超声导波检测研究的最新进展。
- 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。
- Guided wave second-harmonic (SH) generation can not be phase matched automatically by Cerenkov radiation scheme. 用波导产生倍频波时,如果倍频波进入辐射模区,仍然有相匹配问题。
- Based on the ultrasonic guided wave technique and the dispersive waveform prediction method, a method about how to image defects in pipes is presented. 摘要在导波传播理论和频散波形预测理论的基础上，研究了超声导波在检测管道时，如何利用时域波形重构缺陷图像的问题。
- The transmitter generates guided wave in the plate according to magnetostrictive effect,and then it propagates in the plate and is reflected by the damages and edges of the plate. 根据反射信号的到达时间和波在板中传播的速度,可判断出板中缺陷所在位置。改变恒定偏置磁场与时变磁场的方向可以在板中激励不同波型的导波。
- 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。
- Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through "variable cross-section" of metal bar embeded layer was put forward. 摘要运用波动的经典理论，提出了导波在金属杆嵌入层“变截面”传播时波速改变的“等效弹性模量”的概念。
- Guided wave inspection is very attractive in this application as it is particularly sensitive to transverse vertical defects since the waves travel along the length of a rail. 由于波沿着轨道长度方向传播，在横向/垂直向不合格品检验中非常灵敏，所以导向波检验在这方面是非常有吸引力的。
- 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。
- 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。
- Due to the dispersive and multi-mode characteristics of guided waves,the pulse of energy will spread out in space and time as it propagates. 在分析超声导波时间-空间传播特性基础上,建立了超声导波检测的空间表述模型。
- Our theoretical analysis produces the dispersion curves of longitudinal modes of ultrasonic guided waves in liquid-filled pipes with viscoelastic coatings. 理论分析得到了带粘弹性包覆层充液管道中纵向模态的频散曲线。
- Longitudinal ultrasonic guide wave dispersion equation of inviscid liquid-filled pipe is analyzed theoretically. 从理论上得到了充非粘性液体管道中纵向超声导波的频散方程。
- The lights in the harbour guided the ship to port. 海港的灯引导船只进入港口。
- It is the focus to get eigen equation of all kinds cross section waveguide in guide wave optics. 求解各类截面波导的本征方程,一直是导波光学研究的焦点问题。
- Be guided by your sense of what is right and just. 做事要有是非观念和正义感。
- parasitic oscillation in backward wave mode 回波寄生振荡
- 今日热词
-
- 深远海浮式风电平台 - deep-sea floating wind power platform
-
- 京雄高速公路 - Beijing-Xiongan expressway
-
- 农业及相关产业增加值 - the added value of agriculture and related industries
