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- pulse echo fault locator 脉冲回波线障测试仪
- 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。
- 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。
- 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。
- Plenty of dynamic simulations are performed on the fault locator by using Real-Time Digital Simulation (RTDS) system to verify the algorithms presented in this paper. 简单介绍了故障定位装置的硬件和软件实现,并利用研制出的定位装置在实时数字仿真系统(RTDS)上对本文算法进行了大量的动模试验。
- 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;
- Shunt fault with high resistance at the fault location. 高抵抗事故
- Using the characteristics of pulse echo singal during the probe adjustment, a relation model between angle of incidence and time-domain eigenvalue of reflect wave signals was proposed. 分析了探头调整时脉冲回波信号的变化特点,在实验的基础上构建了声束入射角与表面波时域特征值间的关系模型。
- Fault locating is the prereguisite of fault clea-ring. 故障定位是电力系统事故处理的前提。
- The Pulse Echo Tool(PET-AB) is introduced by Halliburton Logging Service Inc. of America at the early days of the ninties, which is the supported downhole tool of the DDL-V well logging system. AB脉冲回声测井仪是90年代初期由美国哈里伯顿公司引进的与DDL-V测井系统配套的井下仪器。
- Fault locator for overhead contact line equipment 接触网故障探测装置
- Acoustic Short Pulse Echo Classification Technique 音响短脉冲回音分类技术
- Research and design of cable fault locator 接地混线故障快速查找仪的研究与设计
- Development of Power Cable Fault Locator 电力电缆故障定点仪的研制
- The simple and intuitionistic formulas were given based on pulsed echo principle, in which the effect of dispersion and transverse sensitivity were considered. 基于脉冲回波原理,并考虑频散及横向效应等因素的影响,提出了减小频散影响的修正系数,并据此给出了简单、直观的管道裂纹检测公式;
- regenerative repeating fault locator 再生中继障碍定位仪
- Second, we also present a new PMU-based fault location algorithm for multi-terminal transmission lines. 另外,因为电力输电线路路权难以取得的缘故,因此存在很多的多端分枝输电线路。
- The process for predicting fault location by using accoustic abnomality in standard layer includes two stages. 在用标准层声波时差异常法确定断层的位置时,首先对标准层声波时差进行趋势面分析,然后再分析残差等值线图。
- Study of Long Distance Pulse Echo System with Ultrasonic Ware 大量程超声波回波测距系统的研究