基于窄脉冲反射仪的高速数据采集系统的设计

Design of High Speed Data Acquisition System Based on Narrow-pulse Reflectometry

简单介绍了窄脉冲反射仪测试电缆故障的基本原理,分析了其脉冲的特点和处理要求,设计了单路低速多次数据采集系统,给出了系统原理框图,并对其逻辑控制部分做了详细阐述。通过仿真分析,证明该系统方案切实可行,可有效解决电缆故障测距过程中的高精度数据采集问题。

This paper simplely introduces the basic principle of cable fault testing with narrow-pulse reflectometry; analyzes the characteristics of the pulse and the processing requirements; designs a system of single several low-speed data acquisition; gives the block diagram of the system and elaborates its logic control on detail. By simulation analysis, it is proved that the program of this system is feasible; it can solve the problems of high-precision data acquisition in ,the process of testing the cable fault effectively.