基于ARM的加速器平均流强的数据采集系统  

The data acquisition system of accelerator average flow power base on ARM

作　　者：瞿少成[1] 陈婵[1] 童金[1] 

机构地区：[1]华中师范大学信息技术系,武汉430079

出　　处：《电子测量技术》2012年第3期117-119,共3页Electronic Measurement Technology

基　　金：华中师范大学中央高校基本科研业务费专项资金;国家自然科学基金项目(61074046/F030107)资助项目

摘　　要：根据加速器对平均流强参数的可靠性要求,构建了ARM与嵌入式Linux的系统构架,设计了一种基于ARM的加速器平均流强的数据采集系统。以ARM单板机为控制核心,移植了源代码免费的嵌入式Linux操作系统作为软件应用平台,实现了设备驱动程序和用户应用程序。经直流电流传感器DCCT及其前端处理将平均流强转化为待测电压信号,配以高精度ADC,实现电压数据自动采集、存储回显等功能。经实验测试表明,系统稳定,且具有较高精度,有较好的应用前景。Aiming at the demands of reliable in accelerator average flow power,a data acquisition system of accelerator average flow power is constructed base on ARM and the embedded Linux.Firstly,the average flow power from the former electronically instrument is transformed to the standard voltage signal by DC sensor DCCT.Then the data signal is sampled by the S3C2440A.Moreover,the system is transplanted the embedded Linux operating system as a software application platform whose source code is free.Many functions of automatic storage and analysis are designed in order to realize the device driver program and user application program.Finally,experiments show that the proposed system is considerable stable and high accuracy.And a good application prospects would be expected.

关 键 词：数据采集 平均流强 ARM LINUX系统 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]