The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
由于锚固体系中有不同大小和程度的缺陷，声波在传播过程中将产生能量衰减、相位突变及频散现象。
Phase Variation Analysis of Transient Evoked Otoacoustic Emission Signal with or without Contralateral acoustic Stimulation.
对侧刺激声作用下瞬态诱发耳声发射信号的相位研究。
The phase mismatch errors are corrected by measuring the transfer function between two channels at the same acoustic field provided with B&KUA0914 inside in-tensity coupler.
本文利用UA0914声强耦合腔产生的同一声场条件，测量声强测量系统两通道之间的传递函数，进而对两通道间的相位不匹配误差进行修正。
The retrieved phase information has been used to reconstruct the acoustic band structures, agreeing well with the theoretical calculations.
并利用这些相位信息重建了声子晶体的色散关系，和理论计算吻合得很好。
The principle of fiber phase modulation is described clearly. The basic principium of fiber-optic acoustic sensor is vividly depicted based on the Michelson-type interferometer.
阐述光纤相位调制机理，结合迈克尔逊型干涉结构探讨光纤声传感的基本思想和原理。
A phase interference method, for measurement of the relative change of surface acoustic wave velocities, is presented.
本文提出了一种相位干涉法。用来测量表面声波速度的相对变化。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
采用四波混频加强SBS的方法，其相干拍频驱动声子场，能提高SBS相位共轭保真度。
It is important to understand the phase characteristics of electro-acoustic device for the design and effect analysis of active noise cancellation controller.
了解电声器件的相位特性对有源消声控制器的设计及消声效果分析具有重要作用。
Signal processing in phase space based on nonlinear dynamics theory is a new method for underwater acoustic signal processing.
基于非线性动力学理论的水声信号相空间处理，是水声信号处理的一种新途径。
The phase and amplitude weighting of the phased array acoustic logging transmitter can be controlled by the two kinds of exciting signal sources.
利用这两种信号源可以对相控线阵声波辐射器进行相位和幅度加权控制。
Based on the theory of two-phase flow pattern of gas and liquid, gas cut change can be detected with acoustic wave after gas flowing into wellbore.
基于气体侵入井眼后按气液两相流型分布的原理，利用声波可以早期检测到气侵。
Objective to investigate the influential factors in the detection system of the leaky surface acoustic wave biosensor in liquid phase.
目的探讨漏声表面波生物传感器液相检测系统的影响因素。
The results indicate that proper combustion phase retarding can reduce acoustic intensity significantly and maintain the performance and emissions.
结果发现通过适当的着火延迟可以有效地降低声响强度，同时保证性能和排放基本不变。
This paper introduces a kind of pulse tube regenerator, which can recover part of the lost acoustic power, and then analyzes it in two aspects:acoustic power recovery and phase angle adjustment.
本文介绍了一种带声功回收的脉管制冷机，从功回收和相位调节角度对它进行了分析。
The paper used acoustic detection method; tested the horizontal pipeline and undulating pipeline in single-phase and two-phase flow situations, and gained the corresponding acoustic signals.
本文采用声学检测的方法，对水平管和起伏管在单相气体和两相流体的情况分别进行了测试，得到了相应的声波信号。
Studied two conditions of acoustic signals when it was single-phase gas and two-phase flow in the pipeline from sound spectrum, acoustic energy, peak frequency and amplitude.
分别从声波频谱，声波能量，峰值频率，以及幅值等方面对管道内为单相气体和两相流体两种状态下的声波信号进行了研究。
The theory of acoustic plate mode (APM) sensor used in liquid phase in details is discussed. The design and the application of APM sensor in biology, chemistry and physics are presented.
讨论了可用于液相环境下测量的声板波(APM)传感器的工作原理，并介绍了该传感器在物理、化学和生物检测中的应用。
The electromagnetic wave radiated by the acoustic source is evidently different from the converted electromagnetic wave in frequency and phase.
声源激发的电磁波在频率与相位特征上不同于转换电磁波。
The electromagnetic wave radiated by the acoustic source is evidently different from the converted electromagnetic wave in frequency and phase.
声源激发的电磁波在频率与相位特征上不同于转换电磁波。
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