基于串口通信的高温高精度电阻测量仪研制

Development of high temperature high accuracy resistance measuring instrument based on serial communication

为了实现对电阻的精确测量和实时监测,方便研究温度对电阻变化的影响,开发了高温高精度电阻测量仪系统。该系统以计算机串口通信技术为核心,实现了对电阻和温度精确测量显示、存储、传输等功能。介绍了利用Delphi7开发的串口通信和数据处理程序,并给出了主要源代码,利用该测量系统可以获得电阻值与温度的关系曲线。应用结果表明,该系统具有操作简便,监测精度高的特点。

In order to realize the resistance precision measuring and the real-time monitor, to facilitate the research temperature to the resistance change influence, the high temperature high accuracy resistance measuring instrument system is developed. This system take the computer string mouth communication as a core, has realized to function and so on resistance and temperature precision measuring demonstration, memory, transmission. The serial communication and data processing program developed with Delphi7 is introduced and the primary source code is given. Use the measurement system available with resistance values oftemperature curve＇ The application result indicated that, has the operation to be simple, monitor precision high characteristic.