大型旋转设备的状态监测和故障诊断系统所用的Ａ／Ｄ采集卡很多时候要求能高速不间断采样以连续提供设备多测点的快变信号数据进行分析处理，特别是在紧急事故追忆时，采集和拷盘操作出现矛盾，使获得的数据不连续。近年来，许多用户又希望系统软件从ＤＯＳ向ＷＩＮＤＯＷＳ移植，由于后者为多用户操作系统，留给用户硬件应用空间不多，缺乏有效地控制，常使在ＤＯＳ下正常的采集程序在ＷＩＮＤＯＷＳ环境下失控，莫名其妙地被截断、丢弃和强行拼接，使获得的数据与事实不符。本文介绍一种带微处理器和大容量先入先出（ＦＩＦＯ）存储器的Ａ／Ｄ卡来解决上述困难。 A / D acquisition cards used in state-of-the-art equipment for condition monitoring and fault diagnosis of large rotating equipment often require high-speed uninterrupted sampling to continually provide fast-changing signal data for multiple points of equipment for analysis and processing, particularly during emergency recall There is a conflict with the copying operation so that the data obtained is not continuous. In recent years, many users also hope that the system software from DOS to WINDOWS transplant, as the latter for multi-user operating system, leaving little space for user hardware applications, the lack of effective control, often under DOS normal acquisition procedures in the WINDOWS environment Uncontrolled, inexplicably truncated, discarded and forcibly stitched, making the data available inconsistent with the facts. This article describes an A / D card with a microprocessor and high-capacity first-in-first-out (FIFO) memory that addresses this difficulty.