基于ADS1256和STM32的数据采集装置设计  

Design of a Data Acquisition Device Based on ADS1256 and STM32

作　　者：郭玉霞[1] 李志杰[1] GUO Yuxia;LI Zhijie(School of Electronic and Information,Gansu Industry Polytechnic College,Tianshui 741025,China)

机构地区：[1]甘肃工业职业技术学院电信学院,甘肃天水741025

出　　处：《无线电工程》2019年第1期81-85,共5页Radio Engineering

基　　金：甘肃省体育卫生与健康教育美育国防教育专项任务资助项目(2017A-013);甘肃省青年科技基金资助项目(1610RJYE127)

摘　　要：为满足自动控制、电子测量等领域数据采集的需求,设计了一种基于ADS1256模数转换器和STM32单片机的数据采集卡。该数据采集装置有8个24位通道,可以配置为单端8通道模式和双端4组模式,直接测量电压范围为0～5 V,具备串口通信接口和CAN总线接口。测试结果表明,该数据采集卡的电压测量相对误差小于0.5%。In order to meet the requirement of automatic control and electronic measurement,a data acquisition card based on ADS1256AD converter and STM32microcontroller is designed.This data acquisition device has824-bit channels,which can be configured as single-end8-channel mode and double-end four-group mode.The voltage range of direct measurement is0-5V,and it has serial port communication interface and CAN bus interface.The test results show that the relative voltage measurement error of this data acquisition card is less than0.5%.

关 键 词：数据采集卡 AD转换器 相对误差 CAN总线 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]