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      超声回波     
相关语句
  ultrasonic echo
     By interaction between ultrasonic waves and elastic medium, it has carried much information of material, which are received in the form of ultrasonic echo signals.
     它是利用超声换能器的振动产生的超声波与弹性介质相互作用,从而携带大量有关材料性能的信息,这种信息以超声回波信号的形式被接收到。
短句来源
     By interaction between ultrasonic waves and elastic medium, it carries much information of material, which is received in the form of ultrasonic echo signals.
     它是利用超声换能器的振动产生的超声波与弹性介质相互作用,从而携带了有关材料组织性能的信息,这种信息随同超声回波信号被接收到。
短句来源
     Feature extraction of ultrasonic echo signals based on wavelet packet transform
     基于小波包变换的超声回波信号特征提取
短句来源
     Application of wavelet analysis in measurement of ultrasonic echo
     小波分析在超声回波测量中的应用
短句来源
     Application of Wavelet Transform to Detecting the Singularity of the Weak Ultrasonic Echo in Pipes
     小波变换在管道弱超声回波奇异性检测中的应用
短句来源
更多       
  ultrasound echo
     Phase Information of Ultrasound Echo Signal ——to Discuss with Acuson Inc.
     超声回波信号中的相位信息——与Acuson公司商榷
短句来源
     This Paper Presents a Method Of Real Time Sampling and Processing The Ultrasound Echo by a Cheap Chip CA3318 Under The Control Of IBM PC/AT.
     本文主要叙述了用一种廉价的CA3318芯片在IBM-PC/AT机的控制下实现超声回波适时采集的基本原理和实现方法
短句来源
     Deformation was obtained by correlation algorithm between ultrasound echo signal and emitted signal,and this process was performed by FPGA.
     对超声回波信号与发射信号进行互相关运算,获取软组织的应变信号,这个过程用FPGA来实现。
短句来源
     The WDA (acronym of Wavelet, Detail and Approximate) cross-correlation method based on wavelet transform was developed in consideration of measuring ultrasound echo signals to reduce the effects of noise, template window sizes and flaws on the time delay estimate using cross-correlation methods.
     为了消除噪声、模板窗口大小和缺陷特征等因素对相关法时间延迟估计的影响,结合检测超声回波信号的特点,提出了基于小波变换的相关法时间延迟估计方法。
短句来源
     Using the circuits, double ultrasound pulses could be made synchronously to satisfy the requirements of ultrasound thermometry, and the weak ultrasound echo signals are received successfully.
     电路可以同步产生符合超声测温要求的双超声脉冲,并且能够成功接收放大比较微弱的超声回波信号。
短句来源
更多       
  ultrasonic echo-signal
     Detecting ultrasonic echo-signal using IIR digital filter based on TMS320C5402
     TMS320C5402数字IIR滤波器的超声回波信号检测
短句来源
     Denoising in Pipeline Ultrasonic Echo-Signal Based on Empirical Mode Decomposition
     基于经验模态分解的管道超声回波信号噪声消除
短句来源
     In the ultrasonic nondestructive test of pipeline,there is much defect information in the ultrasonic echo-signal of pulse reflection,but the echo-signal is disturbed by electronic noise,structure noise and so on. Before analyzed,the ultrasonic defect echo signal must be denoised to get better results.
     在管道超声无损检测中,超声回波信号往往受到电子噪声、结构噪声等噪声的影响,所以在分析缺陷回波信号时,必须对回波信号进行去噪处理.
短句来源
  ultrasonic pulse-echo
     Measurements were carried out under hydrostatic pressure up to 0.5GPa at room temperature,by using an ultrasonic pulse-echo method to measure the transit time of longitudinal and transverse elastic waves(10MHz)in a Nd_ 60Al_ 10Fe_ 20Co_ 10 bulk metallic glass.
     室温下在等静压最高达~0.5GPa的条件下,利用超声回波技术测量了超声波横波和纵波在Nd60Al10Fe20Co10块体金属玻璃中的传播时间来确定横波和纵波速度. 测量时所采用的超声波频率为10MHz.
短句来源
     Study of optical computing real-time processing method for ultrasonic pulse-echo signal
     超声回波讯号的光学计算实时处理方法的研究
短句来源
     This paper analysed the limitations of resolution of ultrasonic detection and presented a method of optical computing real-time processing for ultrasonic pulse-echo.
     本文分析了超声检测目前分辨率受限的根本原因,并提出用光学计算方法实时处理超声回波讯号,以改善其分辨率。
短句来源

 

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  ultrasonic echo
The possibility of using homomorphic filtration of ultrasonic echo signals, as a preliminary data processing method, for upgrading the flaw images obtained during coherent echo-signal processing is considered.
例句来源      
A distinct SNR enhancement for an ultrasonic echo during flaw detection is verified by computer simulation and experimental results.
例句来源      
Experimental data determined via the ultrasonic echo-shock technique on the internal boundaries of wear in the fireproof lining and skull layer in the bottom part of a blast furnace are discussed.
例句来源      
Experimental data show that the auditory system of the harbor porpoise is tuned to detecting ultrasonic echo signals in the frequency range within 120-140 kHz.
例句来源      
The elastic inhomogeneities before illumination lead to a non-exponential decay of the ultrasonic echo pattern.
例句来源      
更多          
  ultrasound echo
The compression is controlled by recording the arterial pulsation of the vertebral artery near the atlantal loop by means of the ultrasound echo.
例句来源      
In 8 conscious men it was studied how application of sub and above atmospheric pressure to the head and neck region influences the diameter of the intact common carotid artery, which was measured with an ultrasound echo-ranging device.
例句来源      
A method for the measurement of intraventricular volume by means of an ultrasound echo technique (intraventricular catheter) is described.
例句来源      
High-resolution measurements of common carotid and femoral arterial diameters have been performed by ultrasound echo devices.
例句来源      
Ultrasound images are assembled by computer using the angle of the catheter tip and its linear advance associated with each ultrasound echo signal.In vivo experimental results are presented.
例句来源      
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