热敏电阻阻温特性曲线测试系统的研制

Research on Measuring Instrument for the Resistance-temperature Curve of Thermistor

通过标准 RS- 2 32串行接口把计算机同智能仪表结合起来 ,组成热敏电阻阻温特性曲线测试系统 ,通过外围接口电路实现通道转换和控温 ,计算机通过串口由智能万用表进行数据采集。由软件实现参数计算和曲线显示。

Measuring instrument for the resistance temperature curve of thermistor is consisted of microcomputer and intellectual instrument via RS 232 interface.The channel transformation and temperature control is realized by peripheral interface circuit and the computer gets digit acquisition from the intellectual instrument via the RS 232 serial interface.