强干扰条件下的多通道温度高速采集及数据处理系统  

MULTICHANNEL RAPID DATA ACQUISITION AND ADMINISTRATION SYSTEM IN STRONG INTERFERENCE ENVIRONMENT

作　　者：张锐[1] 陈佩寅[1] 曲维力[1] 

机构地区：[1]哈尔滨焊接研究所,150080

出　　处：《焊接》2002年第5期16-18,共3页Welding & Joining

摘　　要：针对DOS环境下的多通道温度采集及数据处理系统 ,存在内存管理困难、数据分析处理操作很不方便等缺点 ,而现有Windows环境下采集系统由于多线程分时造成采集时钟不准确 ,一般编程方法只能实现间隔最小5 5ms的时钟 ,且线程等级很低 ,一般误差为 10 %左右 ,难以实现精确时钟采集。为此 ,我们研制了Windows环境下的精确时钟多通道采集及数据处理系统。采用转换精度为 12位的A/D板 ,该系统可同时监测八点的温度变化。由于采用了WindowsAPI函数及多线程技术和动态连接库技术 ,可在良好的界面环境下进行数据采集和处理分析。整个系统具有极强的可移置性和扩容性 。The system of temperatures measuring in DOS operating system has some difficulties of managing memory and inconvenience of data processing. Moreover in Windows operating system, due to multithreading time-sharing, gather timer is inaccurate, and it only realizes 55 ms interval timer. Further more its thread grade is low and its error is about 10%. It is difficult to gather accurately. We develop a Multichannel Rapid Data Acquisition and Administration system in operating Windows operating system that can gather in accurate timer. A/D card which conversion accuracy is 12bit and can gather 8-channel temperature was employed. This system uses API function, multithreading and dynamic link libraries. User can easily operate and analyze data. The system can displace and expand and can be used in strong interference environment.

关 键 词：数据处理 高速采集 多线程 动态连接库 焊接温度 

分 类 号：TG409[金属学及工艺—焊接]