Furthermore, the attenuation of the guided wave can be scaled by the energy factors.
导波的衰减可以用能量因子来衡量。
Ultrasonic guided wave testing is widely used for the inspection of buried pipelines at present.
介绍了超声导波检测埋地管道的特点和应用。
The designing of hybrid integrated guided wave optical wavelength multiplexer and divider is presented.
设计了一种混合集成波导多波长合波-功率分路器。
Third- order nonlinear phenomena and their potential applications in guided wave structures are reviewed.
本文评述发生在波导结构内的三次非线性光学现象及其潜在的应用。
This paper describes the basic principles of the guided wave inspection and the application cases of guided waves in CSEI.
文中介绍了管道导波检测的基本原理和导波应用的案例。
The finite element method is used to investigate the effect of a time reversal method on the guided wave inspection in pipes.
为克服现有导波检测技术对管道小缺陷检测的不足，给出了一种基于时间反转理论的管道缺陷超声导波无损检测方法。
Dispersion and attenuation characteristics of torsional modes of ultrasonic guided wave in pipe with viscoelastic coating are investigated.
研究了带有粘弹性包覆层管道中超声导波扭转模态的频散及其衰减特性。
The guided wave transducers are developed and used for NDT of the economizer in fossil plant, which have feature of quick inspection and low cost.
实践证明采用超声导波技术检测小径管，定位准确，速度快，成本低。
Based on the ultrasonic guided wave technique and the dispersive waveform prediction method, a method about how to image defects in pipes is presented.
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。
All that involved in the paper are analysis and summary of some operation situations of the said pipeline detection with the ultrasonic guided wave process.
对超声导波检测技术在天然气集输站场的管道检测中遇到的一些情况进行了分析总结。
The analyses of the scattering characteristics of some 3-D dis-continuity problems in guided wave structures verify the effective and reliability of the present method.
用这种方法对导波结构三维不连续性散射问题的分析，证实了它的有效性和可靠性。
The extraction efficiency of organic light-emitting diode(OLED) is restrained by the high fraction of energy of the guided wave in the high-index materials(ITO/organic).
有机发光二极管（OLED）发光效率很大程度上受到器件中高折射率材料（ITO/有机物）对导波光能量的制约。
In view of dispersion, the application of guided wave NDT of pipe based on magnetostrictive effect was analyzed by the combination of numerical simulation and experimental research.
利用数值模拟和实验研究两种手段，从频散的角度分析了基于磁致伸缩效应的导波无损检测技术在圆管检测中的应用。
The compact 4-component 2-D finite-difference frequency-domain algorithm (2-D CFDFD) is one of the effective methods to calculate the propagation properties of ideal guided wave structures.
四分量紧凑格式二维频域有限差分（2-DCFDFD）算法，是求解理想导波结构传输特性的有效方法之一。
The investigation about application of the two signal processing methods to guided wave inspection signals supplies new realization basis for the signal processing of guided wave inspection.
两种信号处理方法的超声导波应用研究为以后导波信号的处理提供了新的实现依据。
The guided wave optical method can be applied to measurement of characteristic parameters of optical thin films, but usually can only be carried out under the conditions of single wavelength.
导波光学方法能够用来测量光学薄膜的特征参数，但通常只在单一波长条件下进行。
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.
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。
The current domestic and abroad research status is discussed firstly, and the guided wave mode and exciting method used in pipeline crack detection is determined by disperse curve and wave structure.
首先，介绍了管道导波检测技术国内外的研究现状，然后利用频散曲线和波结构确定了管道裂纹检测所用的导波模态及激励方式。
Thick wall pipes are the core component of so called "four pipe" system for thermal power. It is important to apply circumferential guided wave technique to nondestructive testing of thick wall pipes.
厚壁管道是火电机组四大管道系统的核心部件，将超声导波技术应用于厚壁管道的无损检测显得十分重要。
Guided-wave optics method is used to determine the temperature of the crosslinking polymer films.
提出了用导波光学方法测量交联型聚合物材料的交联温度。
After finding the orthogonal sets corresponding to the guided-wave restriction condition, the analytic dispersive equation, group velocity equation and steady response are obtained simultaneously.
提出自结合方法，导出波传播的限定条件，在找到相应的正交序列后，完全得到弹性波导系统中解析形式的频散方程、群速度方程和稳态响应。
After finding the orthogonal sets corresponding to the guided-wave restriction condition, the analytic dispersive equation, group velocity equation and steady response are obtained simultaneously.
提出自结合方法，导出波传播的限定条件，在找到相应的正交序列后，完全得到弹性波导系统中解析形式的频散方程、群速度方程和稳态响应。
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