Ultrasonic velocity measurements have been used to estimate average grain size in TA2 ship titanium alloy.
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。
The correlation between ultrasonic velocity and microstructure in 20g aged at high temperature is discussed.
讨论了20钢高温时效组织与超声波速度间的相关性。
This paper describes the measurement procedure of ultrasonic attenuation coefficients and ultrasonic velocity tomography.
本文对超声衰减系数和超声声速断层成像的测量过程进行了描述。
The relationship between ultrasonic velocity and compression strength was set up by regression analysis of the testing data.
对试验结果进行了回归分析，建立了钢纤维混凝土超声波声速与抗压强度之间的关系曲线。
The relation between ultrasonic velocity and damage factor is obtained, and the damage factor will increase as the temperature increases.
建立了超声波速与损伤因子的关系，并且得到该砂岩随经历温度的升高损伤因子逐渐增大的规律。
This paper presents a system which combines the measurement of ultrasonic velocity and temperature based on a single board microcomputer.
本文介绍一种微机控制的声速与温度关系测量系统。温度测量应用热电偶测温原理，声速测量采用脉冲回波技术。
This paper presents a study on the histories of ultrasonic velocity variations of concrete specimen during biaxial cyclic compressive loading tests.
对混凝土在双轴压疲劳荷载作用下超声波波速的变化规律进行了试验研究。
In this paper, a novel multifunctional sensor was adopted to online sense temperature, ultrasonic velocity and electrical conductivity of ternary solution.
本文采用一种新颖的多功能传感器，在线敏感三元溶液的超声波传输速度、电导率以及温度三个参量。
Methods By using the ultrasound pulse reflection law, the correlation between the process of thrombosis formation and changes in the ultrasonic velocity was studied quantitatively.
方法采用超声脉冲反射法，着重就血栓形成过程中对其声速变化的相关性进行了定量研究。
The laws of ultrasonic velocity with respect to pressure and temperature in supercritical fluid CO2 can provide a theoretical guide in ultrasonic enhancing supercritical fluid extraction.
超临界CO2流体声速随压力和温度变化规律，对超声技术强化超临界流体萃取应用具有理论指导作用。
The results indicate that the variation of ultrasonic velocity can reflect the damage degree of rock well, and the damage properties of rock can provide basis for the design of rock blast.
结果表明，岩石超声波速的变化可以很好地反映岩石的损伤程度，得出的岩石的损伤特性可以为岩石的爆破设计提供依据。
The length of the visual axis was the distance from the corneal vertex to the macular fovea, and it was also measured by A-mode ultrasound in sitting position with different ultrasonic velocity.
以角膜顶点至黄斑中心凹距离作为视轴长度，此连线上测量硅油后间隙的厚度。
With Ultrasonic ct technology (UCT), we can gain velocity distributing, identify location and dimension of abnormal concrete regions, conclude the type of defect and the intensity of defect.
利用声波层析成像技术可以获得测区混凝土的波速分布图，确定异常区的位置、尺寸，推断缺陷的类型、强度。
We reported the main progress made in China in recent years of the study of ultrasonic tissue characterization-propagation velocity, attenuation, scattering and nonlinearity parameter, etc.
本文报道了近年来我国在生物组织超声特性——传播速度、衰减、吸收、反射、散射和非线性声参量方面的研究进展情况。
Objective To explore the influence of perfusion pressure, blood concentration and blood flow velocity on myocardial ultrasonic backscatter integration.
目的探讨心脏灌注压、血液浓度和血流速度对组织背向散射强度的影响。
In traditional pulse medical ultrasonic imaging system, the ambiguity function has periodic distance ambiguity and velocity ambiguity, this affects the image quality and resolution.
传统的脉冲式医用超声成像系统的模糊函数由于存在周期性的速度模糊和距离模糊，影响了图像的质量和分辨力。
This method is the theory basis of overcoming the distance ambiguity and velocity ambiguity, improving the image quality and resolution and designing new generation medical ultrasonic imaging system.
这一思想的提出为克服速度模糊和距离模糊，提高图像质量和分辨力，设计新一代医用超声成像系统提供了理论依据。
The estimated velocity increased with the decrease of Angle between the ultrasonic beam and blood flow.
随着超声波束与血流角度的减小，检测到速度增加。
Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced.
介绍了超声波时差法风速测量的基本原理，以及基于ARM微控制器的风速测量系统的实现方法。
Three-dimensional velocity components and virtual temperature were measured using ultrasonic anemometer above an area by sea.
采用三维超声风速仪测量了近海边三维风速和虚温数据。
In this paper, the principle and primary results of measure ultrasonic sound velocity and attenuation coefficient by ultrasonic syntonic method are introduced.
本文介绍利用超声共振法测量声速和声衰减系数的原理及自来水和乙醇的测量结果。
The blood flow velocity and volume of VA were measured by Ultrson Doppler and Color Ultrasonic Doppler;
超声多普勒、彩超检测VA 血流速度及血流量；
This paper presents the development of a pulse-echo measurement method, based on the use of a phase spectrum to determine the ultrasonic wave velocity. A detailed descripsion of the theory is given.
本文报道了一种基于脉冲回波相位谱的超声波速度测量方法，并给出了它的详细理论推导过程。
The results indicated that the velocity of phospholipase A1 degumming increased remarkably in appropriate ultrasonic irradiation.
结果表明，适宜的超声辐射可显著提高磷脂酶A1对油脂的酶处理脱胶速度；
A new method for calibration of velocity sensitivity of ultrasonic transducers with a wide band standard acoustic source generated by a pulsed laser is proposed.
本文提出一种利用脉冲激光产生可重复的宽带标准声源、对超声换能器的速度灵敏度进行标定的新方法—激光超声法。
The dispersive characteristics of the Rayleigh waves propagated in the layered media are investigated experimentally by ultrasonic detection test, especially in the presence of a low-velocity layer.
通过超声实验研究了沿分层介质，特别是含有低速层的分层介质传播的瑞利波频散特征。
The variation of sound velocity was more obvious than quality loss. It was concluded that ultrasonic techno…
声速变化比质量损失变化明显，说明超声波法是一种检测混凝土冻融损伤的简单可靠的方法。
The variation of wave velocity before rupture of samples composed of rocks with different properties was studied by the ultrasonic impulse method.
用超声脉冲法研究了不同性质岩块构成的样品破裂前的波速变化。
There are four methods for ultrasonic characterization of tissue elasticity: imaging inspection techniques, vibration velocity measurements, quasi-static strain measurements and parametric methods.
用超声进行组织弹性定征的方法有四种：图像检查法、振动测量法、静态应变测量法和参数识别法。
Utilizing the technique of ultrasonic detection on jointed and fractured rock masses, the author firstly measures the elastic wave velocity, then appraises the quality of different masses.
首先利用超声波探测法对节理裂隙岩体进行了声波测试，对不同的节理裂隙岩体进行了质量评估。
应用推荐