【摘要】 介绍了一种基于USB的光电二极管阵列数据采集系统的设计方案。系统以DSP作为核心,光电二极管阵列的曝光时间和模拟处理电路增益程序可调,采用16位高精度高速模数转换器完成对光电二极管阵列视频信号的精确测量。DSP将采集到的视频数据通过USB接口实时传输给上位计算机,由其来完成视频数据的处理、显示和存储。更多还原

【Abstract】 A high precision data gathering system of photodiode array based on USB was designed in the paper.DSP is the core of the data gathering system.The exposal time of photodiode array and the plus of analog circuit can be adjusted by the program.A 16-BIT high precision and high speed ADC is used to finish the accurate measurement of the photodiode array’s video signal.DSP transfers the video data to the computer with the USB interface.The computer realizes the processing,display and storage of the video data.更多还原