基于SEP3203的高精度功耗测量仪器设计  

Design of High Precision Power Consumption Instrument Based on SEP3203

作　　者：陈昊[1] 王学香[1] 

机构地区：[1]东南大学国家ASIC系统工程技术研究中心,江苏南京210096

出　　处：《现代电子技术》2006年第23期79-81,共3页Modern Electronics Technique

摘　　要：重点阐述高精度功耗检测仪器及其软件的开发工作。本仪器以东南大学ASIC工程中心自主研发的基于ARM7TDMI的SEP3203嵌入式微处理器为核心处理器,以TI公司的高精度数模转换器ADS1210作为转换器件实现模/数转换。采集器共设16个通道,通道与通道之间采用小体积固态继电器M211进行输入量隔离及通道选通,并用TI公司的程控放大器PGA204对较小信号进行放大以匹配AD转换器的输入量程,有效提高了测量精度。本仪器通过RS 485与PC机相连,电气隔离良好,具有较高的工作稳定性。This paper emphasizes on the development of high precision power consumption instrument and software architecture. This instrument adopts SEP3203 based on ARM7TDMI as its core processor which is developed all by ,Southeast University ASIC Center and takes TI＇s high precision analog-digital converter ADS1210 to achieve measured value. The instrument has sixteen channels which uses solid relay M211 to isolate one channel from each other and completes the selection of channels. The Tits programmable amplifier PGA204 is used to amplify the small input signal in order to match the input range of ADS1210 so as to enhance the virtual precision, The instrument is tansmitted to PC by RS 485 interface to ensure the stability,

关 键 词：高精度 SEP3203 数据采集 功耗测量 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]