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- guided wave detection 导波检测
- 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。
- 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。
- This paper presents a signal de-noising method using wavelet analysis in stress wave detection. 介绍了一种适合于管道应力波检测的基于小波变换的去噪方法。
- 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。
- This paper introduces a practical and real -time R wave detection algorithm as well as its realization and adjustment by DSP/BIOS of RTOS. 介绍了一种心电信号R波快速检测算法在实时操作系统DSP／BIOS中的实现过程和调试评测方法。
- This paper introduces a practical and real-Lime R wave detection algorithm as well as its realization and adjustment by DSP/BIOS of RTOS. 摘要介绍了一种心电信号R波快速检测算法在实时操作系统DSP/BIOS中的实现过程和调试评测方法。
- Most of the new gravitational wave detection projects are using laser interferometers instead of resonant mass detectors because they are more sensitive. 大多数引力波探测项目都是使用更为灵敏的激光干涉计探测仪而不是共振质量探测仪。
- Rayleigh wave detection as a shallow seismic detection method, characterized by advantenges of being simple and convenient, has been applied in many fields. 摘要瑞利波可对煤矿井下进行全方位探测，具有简便、快速、应用范围广的优点。
- 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 conclusion is valuable for liquid surface wave detecting and application. 这一结果对液体表面波的检测和应用是有价值的。
- 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。
- A profound development in gravitational waves detection came in 1974 with the discovery by Hulse and Taylor of a binary pulsar. 我们期刊在处理涉嫌违规的稿件的时候，第一个最重要的原则就是尽量不让任何有问题的稿件发表出来。
- Defect Pipe Imaging Based on Guided Wave Technique 基于导波理论的管道缺陷成像研究
- Corrosion Detection of Sleeved Pipe by Guided Wave Ultrasonic Technique 导波超声技术检测带套管管道的腐蚀
- Cat Whisker A fine metal thread resembling the arched shape of a cat's whisker, used in early radio wave detecting crystal sets. 金属细线一种质地良好的金属线,类似于猫的胡须,呈拱形。早期应用于无线电波检测晶体装置。
- The lights in the harbour guided the ship to port. 海港的灯引导船只进入港口。
