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为了加快科学级 CCD相机图像数据的计算机采集速度 ,设计了 CCD信号读出、A/ D转换、数据传输流水线工作方式采集系统 ,不提高电荷转移速度的情况下快速采集图像。充分利用计算机资源 ,采用计算机并行口的EPP工作方式的地址读和数据字读的选通信号 ,通过硬件电路产生 CCD驱动、A/ D转换、数据传输等所需控制信号的方法 ,并用电平标准转换方法 ,实现了射线数字成像检测中的较远距离图像数据快速采集
In order to speed up the computer acquisition speed of scientific CCD camera image data, a collection system of CCD signal readout, A / D conversion and data transmission pipeline working mode is designed to quickly capture images without increasing the charge transfer speed. Take full advantage of computer resources, the use of computer parallel port EPP work address read and data word read strobe signal generated by the hardware circuit CCD drive, A / D conversion, data transmission and other control signals required method, and electricity Flat standard conversion method, to achieve the ray digital imaging detection of the more remote image data acquisition