电阻层析成像数据采集系统的模块化设计  

Modular Design of the Electrical Resistance Tomography Data Acquisition System

作　　者：李二平[1] 董峰[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《控制工程》2007年第S3期142-144,共3页Control Engineering of China

基　　金："863"计划资助项目(2006AA04Z167);天津市应用基础研究计划资助项目(05YFJMJC11600)

摘　　要：针对ERT数据采集系统采集速度慢,稳定性、可靠性差的问题,设计了基于高速数字I/O卡和A/D转换卡的电阻层析成像数据采集系统。整个系统根据功能采取模块化设计。讨论了该系统的基本组成和各模块的功能,并与原有的电阻层析成像数据采集系统进行了比较。改进后的系统比原系统的数据采集速度有了很大提高。由于采取模块化结构,大大提高了系统的稳定性和可靠性,为后续成像和数据处理提供了更为准确的数据。In order to improve the speed as well as the of stability and reliability of the ERT data acquisition system,a new system based on high digital I/O card and A/D conversion card is developed,and the whole system is designed by the thinking of modular design.The basic compo- nents of the system and the function of each module are introduced,and the comparison between the improved data acquisition system for electri- cal resistance tomography system with the former data acquisition system is made.The data acquisition speed of the improved system is much faster than that of the former system.Because the system is designed based on modular,the stability and the reliability of the system are im- proved,and it can provide more precise data for image-reconstruction and data processing.

关 键 词：电阻层析成像技术 数据采集系统 模块化设计 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]