基于Matlab的数据采集系统设计毕业论文.doc

基于MATLAB的数据采集系统设计 摘要： MATLAB具备高性能的数值计算和可视化的科学工程计算功能，支持解释性语言输入，编程实现简单，具有丰富的数学函数功能支持，并拥有功能强大的数据采集工具箱，支持声卡。声卡作为MATLAB的数据采集卡相对于常规的数据采集卡，具有价钱低廉、开发简单和系统便捷等优势。本文研究了一种将两者结合进行数据采集的设计办法。 在文章里具体介绍了该课题的背景,当今数据采集系统的结构和特点，介绍了MATLAB及其数据采集工具箱, 利用声卡的A/D、D/A转换技术和MATLAB的功能,提出了一种高性价比的基于声卡的数据采集与分析方案。并详细分析和阐述了利用MATLAB语言编程实现该数据采集与分析系统的过程和办法。在文章的最后则提供了一些应用该系统采集数据的实例。 关键词：基于MATLAB；基于声卡；数据采集 The System Design Of Data Acquisition Based On The MATLAB Abstract：MATLAB has the function of high-performance numerical computation and visual scientific engineering computing. It supports explanatory language input and the sound card, contains rich mathematical functions and has powerful data acquisition toolbox with simple programming. As the MATLAB data collection card, the sound card, compared to the conventional data collection card, endows with a low price, simple development and convenient system. This paper has discussed a design that combines the two kinds to conduct data collection. This paper has specifically introduced the background of this topic, the structure and the characteristics of nowadays data collection system. It has also introduced MATLAB and its data collection toolbox. By using the A/D, D/A conversion technique of the sound card and the function of MATLAB, I have presented a cost-effective data collection and analysis design based on the sound card, and analyzed and described thoroughly the course and methods of data collection and analysis system by using MATLAB language programming. Finally, this paper has provided some examples which have applied this data collection system. Key words: Based on MATLAB; Based on sound card; DAQ 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc294200907 1绪论 PAGEREF _Toc294200907 \h 1 HYPERLINK \l _Toc294200908 1.1课题背景 PAGEREF _Toc294200908 \h 1 HYPERLINK \l _Toc294200910 1.2数据采集系统的历史与发展 PAGEREF _Toc294200910 \h 1 HYPERLINK \l _Toc294200911 1.3采集和采样方式 PAGEREF _Toc294200911 \h 2 HYPERLINK \l _Toc294200912 2数据采集系统结构 PAGEREF _Toc294200912