等间距采样的高速数据采集系统设计  

High-speed Data Acquisition System Based on Equidistance Sampling

作　　者：郝亮[1] 孟立凡[1] 刘灿[1] 高建中[1] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,太原030051

出　　处：《单片机与嵌入式系统应用》2010年第2期22-25,共4页Microcontrollers & Embedded Systems

摘　　要：简单介绍通过对窄脉冲等间距采样来测试电缆故障的基本原理,分析其脉冲的特点和处理要求;采用FPGA和MSP430F149作为主控芯片,设计了单路多次低速数据采集系统;利用QuartusII软件编写主控程序,并在Modelsim下进行仿真验证。实验结果表明,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。The basic principle of testing cable faults with narrow pulse equidistance sampling is described. Pulse characteristics and processing requirements are analyzed. The single line repeated low-speed data acquisition system is designed with FPGA and MSP430FI49 as main control chips. Main control procedures are programmed in Quartus Ⅱ and simulated in Modelsim. Experimental result shows that the system is practical, and the problem of high-precision data acquisition in the process of cable fault location is resolved effectively.

关 键 词：等间距采样 数据采集 MSP430F149 FPGA 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TU452[自动化与计算机技术—控制科学与工程]