摘要
介绍了一个应用于物理实验的具有开放式、设计灵活的综合数据采集系统,系统以AVRAtmega16L单片机为核心,包括双端双通道16位高精度数模转换芯片AD7705和11通道12位高速数模转换芯片TLC2543,包括RS232接口(包括无线收发)、USB接口,以实现与上位计算机的通信。该系统实际上是一个数据采集的综合实验平台,具有一定的实验功能和开放式的数据采集学习环境,并给学生留有发挥的空间和余地,以提高学生学习的兴趣和提高实践能力;同时又具有一定的实际应用价值,可应用于许多物理实验的数据采集工作中。
The synthetical data acquisition system most used in physics experiments is introduced and its hardware structure and soft-ware progamming outline is described. It is an opening system with flexible design, mainly consisting of AVR Atmega16L and AD7705, a dual - input 16 - bit high accuracy A/D converter, and TLC2543, a 11 - channel 12 - bit high speed A/D converter. This system possesses RS232 （including wireless receiving and transmitting）and USB interfaces, so that it can communicate with PC in many ways easily. It is a synthetical platform for data acquisition experiment. As an opening experiment environment, students are able to study data acquisition at this synthetical experiment platform. Therefore the practice ability of students is cultivated and the interesting is enhanced. On the other hand, it is of much practice value and may be applied to data acquisition of many physics experiments.
出处
《实验科学与技术》
2010年第2期63-65,共3页
Experiment Science and Technology
基金
中国石油大学2008年教学实验技术改革项目
关键词
物理实验
数据采集
单片机
接口
physics experiment
data acquisition
single-chip microcomputer
interface
作者简介
聂士忠（1965-），男，硕士，副教授，主要从事大学物理实验和计算机数据采集的教学和研究工作。
