高精度信号采集装置设计与实现  

Design of High Precision Signal Acquisition Device

作　　者：王森 甄国涌 李北国 WANG Sen;ZHEN Guoyong;LI Beiguo(School of Instrument and Electronic,North University of China,Taiyuan 030051;Beijing Aerospace Long March Aircraft Research Institute,Beijing 100010)

机构地区：[1]中北大学仪器与电子学院,太原030051 [2]北京航天长征飞行器研究所,北京100010

出　　处：《舰船电子工程》2023年第6期126-130,共5页Ship Electronic Engineering

基　　金：装备预研重点实验室基金项目(编号:2021-XXXX-XX-051)资助。

摘　　要：论文设计了一种基于FPGA的高速数据采集装置,该系统以16通道采样芯片AD7490作为A/D采样芯片,选取Xilinx 7系FPGA作为主控芯片,实现了对9路数据进行采集的功能。结合上位机的数据解析功能对数据进行分解绘图。系统充分发挥了FPGA的高速处理能力与AD7490的高精度采集能力,综合性能优越,采集精度相较之前的采集装置,分层值下降了63.7%,系统采集性能有了极大的提高。经过验证,该系统可满足在恶劣现场环境下的模拟数据的采集与存储。This paper designs a high-speed data acquisition device based on FPGA.The system uses 16 channel sampling chip AD7490 as A/D sampling chip and Xilinx 7 Series FPGA as main control chip to realize the function of collecting 9 channels of data.Combine the data analysis function of the upper computer to decompose and draw the data.The system gives full play to the high-speed processing ability of FPGA and the high-precision acquisition ability of AD7490.The comprehensive performance is su⁃perior.Compared with the previous acquisition device,the acquisition accuracy is reduced by 63.7%and the system acquisition per⁃formance is greatly improved.After verification,the system can meet the collection and storage of analog data in harsh field environ⁃ment.

关 键 词：Xilinx 7 AD7490 FPGA AD8608 分层值 

分 类 号：TN792[电子电信—电路与系统]