在高速数据采集系统中用DRAM实现海量缓存  

A Circuit for Muti Channel Periodic and Simultaneous Sample Control

作　　者：田日辉[1] 殷勤业[1] 倪志芳[1] 

机构地区：[1]西安交通大学电信学院信息工程研究所

出　　处：《数据采集与处理》1997年第2期110-113,共4页Journal of Data Acquisition and Processing

基　　金：国家教委跨世纪优秀人才计划专项基金

摘　　要：介绍了一个多通道高速数据采集系统的实现，主要讨论了该系统的硬件结构和采用ＤＲＡＭ实现海量缓存，提高负延时深度的方法。Periodical sampling technology of rotating machinery vibration signal is useful for precise signal analysis.In this paper, a circuit for muti channel periodic and simultaneous sample control is introduced.Togather with micro processor and A/D circuits, high performance turbo machinery vibration data collect system can be generated,and this is the base of further data processing include analysis and diagnosis.This circuit simplified the construction of turbo machinery vibration data collect system,and can be used directly.

关 键 词：数据采集 海量缓存 负延迟触发 DRAM 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]