双通道高速数据采集系统的设计与探讨  

Design of Two-channel High-speed Data Acquisition System

作　　者：吴桂华[1] 蒋天发[1] 

机构地区：[1]中南民族大学计算机科学学院,武汉430074

出　　处：《武汉理工大学学报（交通科学与工程版）》2005年第4期603-605,共3页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家民委重点科研项目资助(批准号:Mzy02004)

摘　　要：介绍了一种采样频率可调的双通道高速数据采集系统的设计方法.该系统由高速A/D转换、高速缓存、频率可调与定时控制逻辑、译码和接口组成,它有效地解决了高速实时信号与接口总线的速度兼容问题.本系统具有采样频率可调、运行方式灵活等特点,可用于交通枢纽环境噪声的测量、电力测量、生物电波、爆破作业、电子学频谱分析等两路数据的实时采集,具有较好的可靠性和实用性.若采用更高性能的A/D转换器、定时器、计数器等元件,系统可升级为超高速同步的多通道的数据采集系统,适用于要求更高的场合.This paper presents a method for two-channel high speed data acquisition system of adjustable frequency. It is combined with high speed A/D,high speed data buffering,adjustable frequency and fixed time control logic and decode interface. This design can efficaciously solves speed compatible question of high-speed timely signals and bus interface. This system has characteristic of adjustable frequency,nimble run way. It uses for timely two path data acquisition of some wink-state signals for example communication line environ noise measure ,blast work ,electric power measure, biological electric wave,electronic frequency analysis and so on. It has quitter reliability. If employing quality function A/D converter,timer,counter,it will go up to an ultrahigh-speed synchronous multi-channel data acquisition system, so as to be applicable to situation of higher requirement.

关 键 词：A/D转换 双通道 频率 可调 高速 

分 类 号：TP271.82[自动化与计算机技术—检测技术与自动化装置]