【摘要】 介绍在MATLAB环境中基于IBMPC微机并口的可编程 8位 8通道数据采集系统 ,该系统具有易于制作、使用方便等特点 ,可应用于各种低频信号的数据采集工作中 .用C语言编写用于端口访问的程序 ,在MATLAB中编译为动态链接库函数 ,通过调用该动态链接库 ,可实现对硬件端口的操作 .利用该方法测绘了铅和蜡的散热曲线 .更多还原

【Abstract】 A data acquisition system with 8-bit digital resolution and 8-channel analog input based on the parallel interface in MATLAB is introduced.This system with a low cost is convenient for installation and easy in use.The dynamic-link library is created by compiling the C program with the command mex,and then,the data acquisition of hardware is realized by invoking the DLL in MATLAB environment.The cooling curves of lead and wax are drawn and plotted as an example.更多还原