The wave charts of laser ultrasonic pulse and its echoes in metal plate are shown.
文中给出了激光超声脉冲及其在金属板中的回波的波形曲线；
The ultrasonic pulse reflecting method is applied to survey the dynamic elastic moduli.
超声脉冲回波法是一种高精度的弹性模量声速测量法。
During the transmission the voltage amplitude of the ultrasonic pulse is approximate 80v pp.
在传输过程中的超声波脉冲电压幅度约80v的聚丙烯。
The overall semiconductor devices are mainly used to design high-speed launchers for ultrasonic pulse detection.
主要采用通用性半导体器件来设计超声检测用高速脉冲发射器。
For this purpose they generate a high frequency ultrasonic pulse the echo of which is detected and evaluated by the sensor.
为此，他们产生高频率的超声波脉冲回波是由传感器检测和评估。
It is effective and practical to use ultrasonic pulse-echo method for insulation condition diagnosis of generator stator bars.
超声反射法是一种有效的、实用的大电机主绝缘状态诊断方法。
Ultrasonic flow meter fluid flow through the detection of ultrasonic beam (or ultrasonic pulse) effect to measure the flow meter.
超声流量计是通过检测流体流动对超声束（或超声脉冲）的作用以测量流量的仪表。
The pulse period of the ultrasonic pulse depends on the period of the transmission pulse and on the ringing time of the transducer.
在超声波脉冲脉冲周期取决于传输脉冲周期和时间的传感器铃声。
The propagation process of ultrasonic pulse along solid-solid interface is recorded by the dynamic photo-elastic method in this paper.
本文报导了用动态光弹法记录的沿两种玻璃形成的界面上超声脉冲的传播过程。
When the pulse-generator sends an ultrasonic pulse to the wireless electrode, the sonic energy causes a receiver in the electrode to vibrate.
当其向无线电极发出超声脉冲时，电极中的接收器会因音波能量而震动。
An instrument for measuring ultrasonic attenuation by means of comparing the ultrasonic pulse echo with a calibrated exponential decay wave-form is described.
本装置用超声脉冲回波与定标指数波形比较的方法测量超声衰减。
D seismic modeling experiment system mainly includes 3d auto control scanning, high speed sampling, ultrasonic pulse or varying frequency signal emitting, etc.
三维地震模型实验系统主要包括三维坐标自动控制、高速数据采集、超声脉冲或可变频正弦信号发射等装置。
These functions are realized by the circuits of power, clock, memory, ultrasonic pulse signal occurs and handle, temperature gathered and serial communication in system.
这些功能的实现是通过系统中电控部分的电源、时钟、存储、超声波脉冲信号发生、处理、温度采集、串行通信电路实现的。
The Methodological investigation on the measurement of thickness of downhole casing with ultrasonic pulse echo technique is carried out both in theory and in experiments.
利用理论分析和实验模拟的方法研究了超声脉冲反射技术测量井下套管厚度的方法。
The transmission rule of the lamb wave in the structure of the flexible joint is discussed, and the ultrasonic pulse echo is analyzed in the time-field and frequency-field.
本文首先分析了板波诱发纵波在柔性接头构件中的传播规律，对原始回波信号进行时域和频域分析。
The ultrasonographic device for imaging inside of an examinee includes: transmission means for transmitting an ultrasonic pulse signal from an ultrasonic element array to the examinee;
超声波摄像装置具备：从超声波元件阵列将超声波脉冲信号发送到被检测体的波发送机构；
In this dissertation, the design of the hardware and software of the detecting radar based on the ultrasonic pulse are completed, including the debugging on the system and the hardware of CW radar.
本课题完成了基于超声波脉冲的测距雷达的硬件设计、软件设计及系统调试并且完成了测速雷达的硬件调试。
Conclusion: Ultrasonic excitation of pulse code is helpful and therefore has a high specificity and sensitivity in the diagnosis of ra and OA.
结论超声激励脉冲编码技术是一项有价值的诊断技术，对RA和OA的诊断具有高度的特异性和敏感性。
Bidirectional electric pulse excitation of piezoelectric transducers for pulsed ultrasonic wave is investigated in this paper.
本文对双向电脉冲激励压电陶瓷超声换能器进行实验研究。
According to the theory of ultrasonic inspection, the principle of flow inspection using multi pulse circulation method was discussed.
根据超声波探测理论，讨论了多脉冲循环法用作非接触式流量检测的原理。
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。
The regulation for ultrasonic modulation of laser pulse spikes and the influence of modulation on drilling are studied.
对激光脉冲尖峰超声调制的一些规律及对打孔的影响进行了研究。
This system consists of a B-mode ultrasonic equipment, a high-speed digitizer, a mechanical compression device and a pulse receiver.
该系统包括B型超声诊断仪、高速采集卡、螺旋挤压装置和脉冲接收器等装置。
Ultrasonic method for oil film thickness measurement is discussed in this paper, including the pulse echo method and the continuous wave method.
本文对超声波油膜厚度测量法进行了探讨。它包括脉冲反射法和连续波法。
AIM to explore the alternating pattern of myocardial ultrasonic integrated backscatter of SD rats before and after being exposed to electromagnetic pulse (EMP).
目的探讨电磁脉冲照射前、后SD大鼠心肌组织超声背向散射参数变化特点。
Comparison of the physical fields show that the effect of liquid puncture acoustic pulse is better than the ultrasonic effect and complex fields are better than single one.
从作用情况的对比看，液电效应声脉冲优于超声波，复合场的效果优于单一场。
A new method for ultrasonic distance measurement based on ultrasonic circulation and multi pulse echo principle is presented in the paper.
本文介绍了一种基于超声波循环反射测量原理的高精度超声测距方法，并给出了以单片机为核心的测距系统的组成。
The principle of detector is that the A-Scan flaw instrument of USL32 beams the ultrasonic to detect the bar material with the method of pulse echo once.
该系统采用A型超声波探伤仪产生超声波脉冲，采用一次脉冲反射法检测棒材。
Modulating the ultrasonic wave, intensity and period of the light pulse will change.
调节超声波，可改变光脉冲的强度和周期。
Modulating the ultrasonic wave, intensity and period of the light pulse will change.
调节超声波，可改变光脉冲的强度和周期。
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