基于单片机与传感器的金属线胀系数测定  

Measure Metal Linear Expansion Coefficient by Using MCU and Sensor

作　　者：杨幼桐[1] 尹少英[1] 万鹏程[1] 陈宝久[1] 

机构地区：[1]哈尔滨学院,黑龙江哈尔滨150080

出　　处：《大学物理实验》2013年第4期40-43,共4页Physical Experiment of College

摘　　要：介绍一种基于单片机和传感器的金属线胀系数测定数据采集处理系统。该系统能实时测量由传感器检测的压力与温度并对数据自动采集与储存,经线性拟合给出线胀系数。电路设计外部硬件电路少,结构简单。其软件功能还可进行扩展以适应不同需求。在21世纪的今天,让学生了解并掌握计算机数据采集与处理方法很有意义。This paper introduces a new method to measuring metal linear expansion coefficient by a MCU control system.The system can automatic measure pressure and temperature and store data.The system can calculate linear expansion coefficient.The circuit needs fewer components,simple structure.The software function can also be extended to meet different needs.In the 21 st century,this is important that let students understand the method how does computer to collect the data.

关 键 词：MPXV5004G V/F转换器 LM331 数据采集 

分 类 号：O4[理学—物理]