一种基于PXI的多通道数据采集系统  

Design of multi-channel data acquisition system based on PXI

作　　者：刘佳[1] 周富大[1] 

机构地区：[1]北京航空航天大学206教研室,北京100083

出　　处：《电子测量技术》2006年第5期129-130,134,共3页Electronic Measurement Technology

摘　　要：本文针对目前我国航空机载飞行测试对数据采集模块的要求,设计并实现了一种基于PXI和DSP的高性能多通道数据采集模块并给出原理性介绍,利用可编程器件和高速数字信号处理芯片,在一张板卡上实现了模拟信号调理、采集、处理,可实现多卡同步触发采集,并已成功应用于某航空机载测试任务中。To meet the demand of data acquisition modules that are used in airborne testing, a design scheme of highperformance and multi-channel data acquisition module based on PXI bus and DSP are introduced in this paper. In this project, analog signal conditioning, data acquisition and processing are implemented on a single card. Furthermore, high precision synchronization-triggering of multi-card was achieved. This system has already been successfully implemented in airborne testing.

关 键 词：PXI DSP 数据采集 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]