The double-probe pulse echo method,combining the advantages of transmission technique and pulse reflection method,is used to optimize the ultrasonic echo signal amplitude in case of strong attenuation of energy when ultrasonic signal transmitting in solid rocket motor grain.
采用双探头脉冲反射法,综合了穿透法和脉冲反射法的优点,实现了超声信号在固体火箭发动机药柱中传播时能量强衰减的情况下超声回波信号幅值的最优化。
The pulse echo method was adopted to pre-treat the ultrasonic signal.
在DSP内部采用脉冲反射法对超声波信号进行预处理,将采样信号与选定域值进行比较,提取有用数据,利用DSP自带的USB接口将有伤信号传送给主机进行实时显示。
Study on the Measurement of Wire Length Based on Pulse-Echo;
基于脉冲反射法的导线长度测量的研究
Base on pulse reflecting technique, a kind of portable equipment is designed to locate trouble points in cable.
基于脉冲反射法，设计了一款便携式电缆故障定位仪。
pulse reflection fault locator
脉冲反射式故障定位器
Study on the Characters of Ultrasonic Pulse Field Based on the Means of Reflection by Small Ball
基于小球反射法的超声脉冲波声场特性研究
Network Cable Fault Location Based on the Wide Pulse Time-Domain Reflection
宽脉冲时域反射网络线缆测试方法研究
Time-domain reflectometry( TDR): An impulse is transmitted into the loop.
时域反射器（DR）一个脉冲发射给环路。
The Application of the Pulse TDR Gauge to Power Plant
脉冲时域反射物位计在电厂中的应用
To assist with weak reflections and mitigating the effects of loop noise, typically a train of impulses is used and the reflections averaged.
为了辅助微弱的反射波和减轻环路噪声的影响，典型的做法是采用一列脉冲并对反射脉冲做平均。
Electrical Pulses Timing of X-ray Framing Cameras
X射线分幅相机电脉冲时标方法研究
EFFECTS OF ELECTROMAGNETIC PULSE (EMP) ON THE ABILITY OF LEARNING AND MEMORY AND INVESTIGATORY REFLEX OF MICE
电磁脉冲对小鼠学习记忆和探究反射的影响
Design of High Speed Data Acquisition System Based on Narrow-pulse Reflectometry
基于窄脉冲反射仪的高速数据采集系统的设计
Diffraction Characteristics Analysis of Ultra-Short Pulsed Gaussian Laser Beam by Reflecting Volume Grating
反射型体光栅对超短脉冲高斯光束衍射特性分析
Modulating pulse undershoot(negative spike)
调制脉冲下冲(反峰)
A New Method for Measuring the Stability of RF Pulse Series
一种测量射频脉冲序列稳定性的新方法
The Research of the Navigation of Spacecraft Based on the X-Ray Pulsars;
基于X射线脉冲星的航天器自主导航方法研究
The Application of Pulse Magnetron Sputtering on Manufacturing Quartz Crystal Resonators;
脉冲磁控溅射法制备石英晶体谐振器的研究
Transmitted Waveform and Receiver Design in IR-UWB System;
脉冲超宽带系统发射波形及接收算法设计
Research of the Ultra-Short-Pulse Laser Transient Radiation Based on Finite Volume Method
基于有限体积法的超短脉冲激光瞬态辐射研究