纵波

文中叙述了横波反射法在三元里地区应用受限的原因及纵波反射法在本地区为压制干扰、提高分辨率所采取的措施，使P波反射法勘探取得了好的效果。

In the paper , it narrates the cause of limitation of the application of transverse wave reflection method and the measures taken for the longitudinal wave reflection method in this district to suppress the interference and enhance the resolution and good results are obtained .

液隔电极式压电传感器（ESPS）中的纵波效应研究

Study on the Longitudinal Wave Effect in an Electrode - separated Piezoelectric Sensor

砂岩和大理岩纵波速度及Q值实验研究

An experimental study of compressive wave velocity and Q value of sandstone and marble

对衰减介质中纵波（PP波）和转换波（PS波）的分辨率问题进行了初步的探讨。

This paper reviewed the studies on resolution of PP-and PS-waves in attenuated media .

这些研究表明：这些振动分为两种类型——横波（P波）和纵波（S波）。

You see , these studies revealed that these vibrations were of two types : compression --- or P --- waves and shear --- or S --- waves .

而vx>c2及c2>vz>b2的分波却不存在，此处c2和b2分别是井外岩层的纵波和横波速度。

Here , c_ ( 2 ) and b_ ( 2 ) are the longitudinal and transversal wave velocity in the rock layer outside the hole respectively .

用SP′震相计算乌鲁木齐台附近地壳厚度和地壳内纵波速度

Using seismic phase SF to estimate the crustal depth and crustal compressional velocity near Urumqi station

纵波AVO数据用于储层裂缝参数反演的研究

Application of P-wave AVO Data in Reservoir Fracture Parameter Inverting

这里通过综述目前常用的纵波裂缝检测技术，结合部分实际数据，总结了三维P波采集方案设计的一些基本原则，为储层裂缝检测提供了野外设计方面的参考。

This paper outlines the common technologies for fracture-detecting with P-wave , summarize some basic principles for designing 3D P-wave exploration which may be the references for designing project to detect reservoir fracture .

此法可以拟合出不带动校拉伸、不带多次波的P波剖面。用剔除拟合法求纵波正入射剖面&一一种取代水平叠加的处理技术

Consequently , this method results in multiple-free P-wave section , without NMO correction lengthening here . Producing a normal-incident P-wave section by deletion fitting method : a processing technique for replacing horizontal stack

本论文依据衰减理论建立了层状地层纵波、转换波的衰减模型，利用谱比法、叠前CMP道集法、质心频移法对纵波和转换波的Q值进行反演。

The attenuation models for P-wave and converted wave are based on attenuation theories of media in the paper .

用纵波AVO数据反演储层裂隙密度参数

Inverting reservoir fracture density using P-wave AVO data

在实验的温度范围内，观察到纵波和横波的内耗QM~（-1）基本相等。

In the experimental temperature region the internal friction Q_M ~ ( - 1 ) of longitudinal and transverse waves in the samples is almost equivalent .

在三维弹性波散射问题的Born近似解基础上，进一步分析了在纵波入射条件下二维散射问题的Born近似解，对铝质长杆中的椭圆形空穴缺陷的散射场情况进行了对比分析；

According to the Born approximation solution of the scattering of three-dimensional elastic waves , the scattering from an ellipse void in a long Al rod is analyzed comparatively .

TD1井VSP纵波及PS横波的地质应用

Application of VSP compressional and PS wave to geological exploration

介绍了利用纵波震源零井源距三分量VSP资料的下行横波信息对井旁裂缝进行检测的原理和实现方法。

Theories and method of fracture detection by down-going S-wave information from zero offset three-component VSP data were introduced .

UT检测纵波实用AVG曲线的计算、制作和使用

Calculation , Facture and Use of Practical AVG Curve in UT Inspection by Longitudinal Wave

进而采用该传感器测试了由脉冲Nd∶YAG激光在抛光的薄铁片上所激发的超声纵波。

The sensor is used to detect laser-induced ultrasonic longitude-wave at the epicenter of the rear metallic surface when pulse Nd ∶ YAG laser is focused on polished iron plate .

得到大庆1号及2号井岩样纵波波速及Q与围压及温度之间的拟合公式。

The regression formula for P-wave velocity as well as quality factor Q as a function of temperature and confining pressure has been got for core samples of Daqing well No. 1 and No.

PS转换波勘探采用纵波震源，具有采集成本低及劳动强度小的特点，在识别岩性、孔隙中的流体性质以及裂缝描述等方面发挥着日益重要的作用。

PS converted wave exploration is playing more and more important role in fields of geophysical interpretation , such as lithology identification , pore fluid characteristics i-dentification and fractured reservoir description .

本文利用AVO分析属性数据提取纵波剖面和横波剖面，然后分别进行波阻抗反演。

The paper uses AVO attributes parameters to detect the P wave section and S wave section , then implements wave impedance inversion separately .

纵波在改进的弹性非线性法向变形行为单节理处的传播特性研究各向同性介质包覆单轴晶体TM波表面传播模式存在条件研究

Transmission of elastic P-wave across one fracture with improved nonlinear normal deformation behaviors Condition for the existence of surface TM modes at the interface between an isotropic medium and a uniaxial plasma

应用层析速度反演计算出表层沙的纵波速度，进而得到其品质因子分布，利用反Q滤波对地震资料进行吸收补偿。

Using the relationship between velocity and quality factor and the velocity obtained by inversion , the distribution of quality factor is derived and then the absorption compensation is applied to seismic data by inverse-Q filter .

煤层的含气性及渗透性可以利用纵波AVO技术及基于各向异性理论的方位AVO技术进行研究。

The gas content and permeability of coal can be researched by the technology of P-wave AVO and azimuthal AVO which based on the anisotropy theory .

本文提出用AVO纵波信息代替常规叠加剖面，并结合转换横波信息来检测浅层亮点气。

The bright spot due to shallow gas reservoir can be determined by analysing AVO information of P-wave and converted shear wave , instead of conventional stacked section .

由于P-SV转换波对线的不对称性，它的叠加比纵波的CDP叠加要难得多。

The CCP stacking for converted waves is much more complicated than the CDP stacking for P-waves due to the asymmetric ray paths .

发现在中强地震前，该地区小震综合机制解的P轴方位偏离平均值，向E或SE偏转，其仰角有增大的趋势，同时小震纵波（Pn和Pg）初动符号一致。

It is found that direction of the P axes drifted off average values and turned to E or SE , being accompanied by identified first motion mark of P n and P g waves of small earthquakes .

由于横波只在固体骨架上传播，斑块饱和模型中纵波和横波的耦合可以在自由表面上产生等效Rayleigh面波。

As the S wave propagates in the solid frame skeleton , the combination of P wave and S wave in patchy saturation model generates the effective Rayleigh surface wave at the free surface .

通过对超声纵波声速的测量来评定船用TA2钛合金的平均晶粒尺寸。

Ultrasonic velocity measurements have been used to estimate average grain size in TA2 ship titanium alloy .

在有限差分模拟中，采用了普通的Kelly差分格式、二阶各向异性吸收边界条件和一般的纵波震源的解析形式，并应用修正的通量传输校正（FCT）方法来消除频散。

The general Kelly difference format , 2nd anisotropy absorbing boundary conditions and the common analytic solution of P-wave are applied during the process of modeling .