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Acoustic Short Pulse Echo Classification Technique 音响短脉冲回音分类技术
METHODS FOR MEASUREMENT OF THICKNESS BY ULTRASONIC PULSE ECHO TECHNIQUE 超声脉冲反射法测厚
General rule of ultrasonic testing of metals by pulse echo technique 金属材料超声脉冲回波检测的一般规则
General rule of ultrasonic testing of metalsby the pulse echo technique 利用脉冲回波法的金属材料超声波探伤试验方法基本规定
TESTING METHOD FOR ULTRASONIC PULSE ECHO TECHNIQUE OF CARBON FIBRE REINFORCED PLASTIC PANELS 碳纤维增强塑料板的超声脉冲回波法检测
METHOD FOR ASSESSING THE ELECTRICAL CHARACTERISTICS OF ULTRASONIC TESTING INSTRUMENT USING PULSE ECHO TECHNIQUE 超声脉冲回波检测仪电子性能评定方法
Method for measurement of ultrasonic attenuation coefficient of solidby pulse echo technique 利用超声波脉冲回波法的固体超声波衰减系数测量方法
Methods for assessing the electrical characteristics of ultrasonic testing instrument using pulse echo technique 超声波探伤仪器电器性能测定方法
pulse echo technique 脉冲反射探伤法
Our transmitter is sending out a series of short pulses. 我们的发射机正在发射一系列短脉冲。
A high power LD pumped acousto-optic Q-switched Nd:YVO_4 laser is reported. Short pulse of 1 064nmis obtained. 利用半导体激光器(LD)连续单端泵浦Nd:YVO4晶体,实现了声光调Q输出1064nm的短脉冲。
Pulse Echo Method (PEM) is a fast,economic and feasible method for Low-strain Dynamic Testing(LDT)of piles. 小应变反射波法是当前在工程桩基检测中应用的动测法之一。
Under this circumstance, the effect of the Fabry-Perot filter to a short pulse signal may affect the following short pulse signals. 本文推导出了高斯型光脉冲经过滤波器后输出脉冲的时域表达式。
Physical characteristics of terrestrial surface targets are retrieved by information contained in laser pulse echo signal with laser altimeter. 摘要激光测高仪依靠回波信号包含的信息来反演地面目标的物理特性，因此必须保持回波信号的保真度和高信噪比。
Put forward a method that using CMOS chip of delay and ECL gate to generator short pulse,and analyzing the principle of generation. 用于超宽带穿墙雷达的脉冲产生技术是一种无载波极窄脉冲产生技术,在无线电通信领域有着广阔的应用前景。
Dynamic sonic vibration,pulse echo method,backscatter method,dual transducer methods and ultrasonic spectroscopy analysis were often used for ultrasonic testing. 超声检测方法主要有声振法、脉冲回波法、背散射法、双探头法和超声谱分析法。
In the process of ultrasonic testing of multi-layered interface, it is difficult to distinguish interface-echo from ultrasonic pulse echo because of peculiar structure. 摘要超声检测在多界面粘接检测应用中，由于多界面结构的特殊性，造成回波信号不易分辨。
The ultrasonic receiver, after receiving to and meeting the reflection wave that the barrier reflects back, offer a short pulse to the one-chip computer too. 超声波接收器则在接收到遇障碍物反射回来的反射波后，也向单片机提供一个短脉冲。
This system adopts ultrasonic pulse echo to measure distance,uses temperature sensor DS1624 to obtain ambient temperature which is used to compensate the measurement errors by soft programming. 该系统采用超声波脉冲回波测量方法测量摊铺料厚度,利用温度传感器DS1624测量环境温度,通过软件对温度引起的测量误差进行补偿;