H-plane waveguide discontinuities is an important problem in the theory of guided waves.
H面波导不连续性是导波场理论中的重要问题。
Surface and guided waves are considered as specific examples of non-linear integrated optics.
表面和被导波被认为是非线性集成光学的具体的例子。
The net energy flux of the guided waves related to these surface polaritons may be forward, backward or even be stopped.
负折射手征介质平板的表面波能流可以向前或者向后,甚至可以停止。
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。
In this paper, industry pipeline defects NDT using ultrasonic guided waves was carried out theoretically and experimentally.
本文对超声导波技术应用于工业管道缺陷无损检测进行了理论和实验研究。
Torsional mode is one of the types of ultrasonic guided waves in pipes and it can be used to detect different kinds of defects.
扭转模态是管道中超声导波的模态之一,可以检测各类缺陷。
Propagation characteristics of longitudinal ultrasonic guided waves of steel rod embedded in infinite medium are studied in theory.
从理论上分析高频纵向超声导波在埋于无限大介质中钢杆传播的特性。
The results are shown that ultrasonic guided waves can be generated by angle probe and can be used to inspect the flaws in the pipes.
实验表明,利用斜探头可以在管道中激励和接收超声导波并可对管道中的缺陷进行检测。
According to the simulated numerical results, the longitudinal mode guided waves at different frequencies were excited in the experiments.
参照数值计算结果,实验中采用不同频率激励纵向模态导波。
Abstract: : Summarize the significance of computer control ultrasonic guided waves technique to the detection of oil pipeline erosion defects.
摘要:简述了计算机控制的超声导波检测技术在管道腐蚀缺陷检测中的重要意义。
In all the above cases, the utility for transport of terahertz pulses is limited by the high loss, or by the group velocity dispersion of the guided waves.
在上所述的情况中,太赫兹脉冲的有效传输受限于高损耗,或导波的群速度色散。
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。
PZT transducers have been used to excite and receive ultrasonic guided waves in steel pipes. The reflect and transmission rules of guided waves are researched.
采用PZT传感器在钢管中激励并接收超声导波,研究导波在管道中传播时的反射、透射现象。
Axially symmetric longitudinal mode guided waves are more sensitive to the circumferential crack defects, which is basically consistent with the theoretical analysis.
轴对称的纵向模态导波对于周向裂纹缺陷较为敏感,这与模拟结果比较接近。
When a low-velocity layer exists, the fundamental guided curve will become complex, some guided waves will assume intersection trend, and some guided waves show phenomenon of truncati…
指出当低速软弱夹层存在时频散曲线的特点,并根据分析结果,说明“之”字形频散曲线的形成机理。
To increase the speed of ultrasonic inspection for large thin plate, the ultrasonic guided waves and their applications to the defect inspection of large thin aluminum plate are studied.
为了提高大型薄板超声检测的速度,研究了超声导波及其在大型薄铝板缺陷检测中的应用。
Based on previous study on the guided wave propagated in the pipeline, the main of this paper is to do experimental study on damage detection in pipes using ultrasonic guided waves technique.
本文在前人对导波在管道中传播的理论基础上,重点对管道进行了损伤检测的实验研究。
The mechanism of zigzag dispersion curves in the Rayleigh wave exploration is theoretically analyzed. The propagation characteristics and interrelation of the guided waves are studied thoroughly.
对瑞利波勘探中“之”字形频散曲线形成的物理机理进行了理论分析,研究了诸波模的传播特性及相互关系。
Based on the anchorage mechanism of bolts, a model for the anchorage system is established. An embedded bolt can be regarded as a waveguide according to the propagation properties of guided waves.
根据锚杆的锚固机制,建立锚固体系模型,并由导波的传播特性提出把锚固锚杆作为波导来处理的思想。
The present paper mainly studies the interaction between the guided optical waves (GOWs) and magnetostatic forward volume waves (MSFVWs) in a double layered waveguide under inclined magnetic field.
本文研究了斜向场下双层磁光薄膜波导中导波光与静磁正向体波之间的相互作用。
In this paper, the problem of interaction of guided electromagnetic waves and strong fluctuation random media is studied for the first time.
本文首次研究了被导电磁波与强扰动随机媒质的相互作用问题。
By using two kinds of model of ducts in which the VLF electromagnetic waves are guided, we obtain the distributions of magnetic field and current in the whistler duets.
利用两种能够引导甚低频电磁波的导管模式,求得哨声导管中磁场和电流的分布。
Exact dispersion relations for TM waves guided by thin dielectric films covered on one or two sides media of intensity-dependent refractive indexes have been derived.
对于介质薄膜波导的一边或两边复盖有介电常数与光强成正比的非线性介质的三种不同结构,本文导出了三层非线性平面光波导TM波的精确色散关系。
Exact dispersion relations for TM waves guided by thin dielectric films covered on one or two sides media of intensity-dependent refractive indexes have been derived.
对于介质薄膜波导的一边或两边复盖有介电常数与光强成正比的非线性介质的三种不同结构,本文导出了三层非线性平面光波导TM波的精确色散关系。
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