电加热炉温度测控系统 实现上位机基于VC软件的操作界面，对电加热炉的当前温度进行测量和显示，对炉温越限进行报警，通过电压调整控制炉温。-Temperature measurement and control system for electric heating furnace the host computer VC interface of software based on the electric heating furnace, the temperature measurement