摘要
基于Windows98平台 ,利用PC - 74 2 3A D转换卡对压力测控系统中的压力信号进行采集 ,并通过几种定时方法的比较 ,选用多媒体定时器实现了对压力数据的定时获取。同时 ,采用数字滤波、自适应校正算法进一步提高了采集精度。最后 ,给出了用VC
Based on Windows98 OS, Signals from the pressure test control system are collected by using PC-7423 A/D conversion card. Through comparing several timing methods, pressure data can be acquired in a fixed time by using multimedia timer, and the precision of data acquisition has been further improved by adopting digital filter and adaptive correcting algorithm. At last, the program instances design with Visual (C++) are provided.
出处
《中国测试技术》
2005年第1期57-58,63,共3页
CHINA MEASUREMENT & TESTING TECHNOLOGY
