guided wave

method using the cut-off frequency of the filter detection signal processing, analysis of different degree of injury and the relationship between ultrasonic guided wave signal.

采用截止频率法对检测信号进行了滤波处理，分析了不同损伤程度与超声导波信号的关系。

Research on propagation mechanism of guided wave through bonding metal bars

导波在锚固金属杆中传播机理的研究

theoretical analysis for guided wave patterns in an optical waveguide tactile sensing system

光波导触觉传感系统中的导波模式理论分析

The elastic guided waves are generated by application of the static bias magnetic field and the dynamic magnetic field which is induced by the alternating current passing the exciting coil, and the elastic guided wave displacement formula is derived by its equation of motion in the steel pipe.

在静态偏置磁场和通过传感器激励线圈交变电流形成的交变磁场作用下，管道中产生弹性导波，由弹性导波运动方程，推导其位移表达式，由位移求出应变。

The project just do research on using certain guided wave modes to detect the pipe flaw.

本文正是针对这一课题深入研究了纵向超声导波技术及其检测管道缺陷的方法.

Discussions on Ultrasonic guided wave test length of bolting

超声导波检测锚杆长度若干问题的讨论

torsional mode of ultrasonic guided wave propagation characteristics in pipes with viscoelastic coatings

超声导波扭转模态在粘弹性包覆层管道中传播特性研究

a guided wave radar water-level meter was designed for the needs of modern industry.

雷达液位计近年来应用越来越广泛，针对现代工业需要，研制了一种导波雷达液位计。

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。

Based on the theory of elastodynamics, the longitudinal guided wave and flexural guided wave group velocity dispersion curves for M22 stud were calculated.

根据弹性动力学理论，采用纵向导波与弯曲导波相结合的方法对螺柱所受轴向应力进行无损检测。

theoretical review of guided wave optics ( sequel)

导波光学概论（续）

It is available to increase the number of cycles at the high frequency condition. Fourth, the guided wave velocity changes greatly with the different radius in unanchored bolt model.

在高频时，因波长较短，所以应大大地增加周期数。四、导波在自由锚杆中传播时，锚杆的半径不同，速度变化很大。