本文介绍了一种用于线阵CCD视频信号的计算机高速数据采集系统.该系统采用的是高速8位A/D转换器,数据传输选用计算机中最快的一种传送方式即DMA方式,它具有采集速度快、数据采集与CCD象元信号输出同步的特点.这就克服了过去由于采集速度慢,不得不对输出信号取“跳采”方式,造成图像对准困难等缺点.在行采的基础上,由步进电机带动CCD作一维扫描运动,完成对图像的采集,这在条纹图像输入、医学图片的计算机输入等应用方面是十分有用的. This paper introduces a high-speed computer data acquisition system for linear CCD video signal.The system uses a high-speed 8-bit A / D converter, the data transmission is the fastest computer to choose a transfer mode that DMA Has the characteristics of fast acquisition, data acquisition and CCD pixel signal output synchronization.This overcomes the past due to slow acquisition, the output signal has to take “jump” mode, resulting in image alignment difficulties and other shortcomings. Based on the stepper motor drive CCD for one-dimensional scanning motion, the completion of the image acquisition, which is streak image input, medical images, such as computer input is very useful.