存储示波表中常用电气参数测量设计  

Design of Measurement of Common Electric Parameters in Memory Oscillo graph

作　　者：宋跃[1] 周明辉[2] 雷瑞庭[2] 谭爱群[1] 

机构地区：[1]东莞理工学院电子工程系,广东东莞523808 [2]湘潭湖南科技大学信息与电气工程学院,湖南411201

出　　处：《微计算机信息》2005年第11S期114-116,共3页Control & Automation

基　　金：湖南省自然科学基金项目(02JJY5011);省科技攻关项目(03GKY3046);东莞理工学院科研项目。

摘　　要：在基于ARM&MCU的存储示波表设计中,为满足高精度多元电气参数测量,选用了ADS121124位的AD转换芯片实现了5位半的万用表测量,运用等精度和闸门计数技术在FPGA中实现通用计数器参数测量,实验表明该设计是行之有效的。本文讨论了系统设计方案,重点给出了ADS1211应用、FPGA的设计思想和实现方法。To meet the requirements of high precision measurement of electric parameters in the design of memory oscillograph, a 24 bit AD chip ADS1211 was used to actualize the five and a half bits high precision muhimeter, equal precision and gate count technology were applied for common counter measure on FPGA, experiments showed the design was feaible, it s system design plan was discussed, design thought and practise method of ADS121 land FPGA were given mainly in the paper.

关 键 词：电气参数测量 ADS1211 万用表 通用计数器 FPGA 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TM935[自动化与计算机技术—控制科学与工程]